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+ − 1 % !TEX program = xelatex
352
+ − 2 \documentclass[dvipsnames,14pt,t,xelatex,aspectratio=169,xcolor={table}]{beamer}
442
+ − 3 \usepackage{../styles/slides}
+ − 4 \usepackage{../styles/mygraphs}
+ − 5 \usepackage{../styles/langs}
22
+ − 6 %\usepackage{../data}
442
+ − 7 \usetikzlibrary{shapes}
22
+ − 8
442
+ − 9 \hfuzz=220pt
22
+ − 10
+ − 11 %\setmonofont[Scale=.88]{Consolas}
+ − 12 %\newfontfamily{\consolas}{Consolas}
+ − 13
+ − 14 \lstset{language=Scala,
+ − 15 style=mystyle,
+ − 16 numbersep=0pt,
+ − 17 numbers=none,
+ − 18 xleftmargin=0mm}
+ − 19
353
+ − 20
+ − 21 \colorlet{punct}{red!60!black}
+ − 22 \definecolor{background}{HTML}{EEEEEE}
+ − 23 \definecolor{delim}{RGB}{20,105,176}
+ − 24 \colorlet{numb}{magenta!60!black}
+ − 25
+ − 26 \lstdefinelanguage{json}{
+ − 27 basicstyle=\normalfont\ttfamily,
+ − 28 numbers=left,
+ − 29 numberstyle=\scriptsize,
+ − 30 stepnumber=1,
+ − 31 %numbersep=8pt,
+ − 32 showstringspaces=false,
+ − 33 breaklines=true,
+ − 34 %frame=lines,
+ − 35 %backgroundcolor=\color{background},
+ − 36 literate=
+ − 37 *{0}{{{\color{numb}0}}}{1}
+ − 38 {1}{{{\color{numb}1}}}{1}
+ − 39 {2}{{{\color{numb}2}}}{1}
+ − 40 {3}{{{\color{numb}3}}}{1}
+ − 41 {4}{{{\color{numb}4}}}{1}
+ − 42 {5}{{{\color{numb}5}}}{1}
+ − 43 {6}{{{\color{numb}6}}}{1}
+ − 44 {7}{{{\color{numb}7}}}{1}
+ − 45 {8}{{{\color{numb}8}}}{1}
+ − 46 {9}{{{\color{numb}9}}}{1}
+ − 47 {:}{{{\color{punct}{:}}}}{1}
+ − 48 {,}{{{\color{punct}{,}}}}{1}
+ − 49 {\{}{{{\color{delim}{\{}}}}{1}
+ − 50 {\}}{{{\color{delim}{\}}}}}{1}
+ − 51 {[}{{{\color{delim}{[}}}}{1}
+ − 52 {]}{{{\color{delim}{]}}}}{1},
+ − 53 }
+ − 54
309
+ − 55 \newcommand{\bl}[1]{\textcolor{blue}{#1}}
+ − 56
+ − 57 \newcommand{\RIGHTarrow}[3]{%
+ − 58 \begin{textblock}{0}(#2,#3)%
+ − 59 \onslide<#1>{%
+ − 60 \begin{tikzpicture}%
+ − 61 \node at (0,0) [single arrow, shape border rotate=0, fill=red,text=red]{a};%
+ − 62 \end{tikzpicture}}%
+ − 63 \end{textblock}}
+ − 64 \newcommand{\LEFTarrow}[3]{%
+ − 65 \begin{textblock}{0}(#2,#3)%
+ − 66 \onslide<#1>{%
+ − 67 \begin{tikzpicture}%
+ − 68 \node at (0,0) [single arrow, shape border rotate=180, fill=red,text=red]{a};%
+ − 69 \end{tikzpicture}}%
+ − 70 \end{textblock}}
+ − 71 \newcommand{\DOWNarrow}[3]{%
+ − 72 \begin{textblock}{0}(#2,#3)%
+ − 73 \onslide<#1>{%
+ − 74 \begin{tikzpicture}%
+ − 75 \node at (0,0) [single arrow, shape border rotate=270, fill=red,text=red]{a};%
+ − 76 \end{tikzpicture}}%
+ − 77 \end{textblock}}
22
+ − 78
+ − 79 % beamer stuff
195
+ − 80 \renewcommand{\slidecaption}{PEP (Scala) \liningnums{01}, King's College London}
22
+ − 81
334
+ − 82 % https://insights.stackoverflow.com/survey/2019#technology-most-loved-dreaded-and-wanted
+ − 83
+ − 84 % processors in the future / Ahmdahl law
+ − 85 % https://www.youtube.com/watch?v=_9mzmvhwMqw
+ − 86
352
+ − 87 \setbeamertemplate{itemize items}{$\bullet$}
+ − 88 \setbeamertemplate{itemize subitem}{$\bullet$}
+ − 89 \setbeamertemplate{itemize subsubitem}{$\bullet$}
+ − 90
+ − 91 \usepackage{tcolorbox}
+ − 92 \newtcolorbox{mybox}{colback=red!5!white,colframe=red!75!black}
+ − 93 \newtcolorbox{mybox2}[1]{colback=red!5!white,colframe=red!75!black,fonttitle=\bfseries,title=#1}
+ − 94 \newtcolorbox{mybox3}[1]{colback=Cyan!5!white,colframe=Cyan!75!black,fonttitle=\bfseries,title=#1}
22
+ − 95
+ − 96 \begin{document}
+ − 97
+ − 98 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 99 \begin{frame}[t]
+ − 100 \frametitle{%
+ − 101 \begin{tabular}{@ {}c@ {}}
+ − 102 \\[5mm]
199
+ − 103 \hspace{7mm}\huge PEP Scala (\liningnums{1})
22
+ − 104 \end{tabular}}
+ − 105
+ − 106 \normalsize
+ − 107 \begin{center}
+ − 108 \begin{tabular}{ll}
137
+ − 109 Email: & christian.urban at kcl.ac.uk\\
353
+ − 110 %Office: & N\liningnums{7.07} (North Wing, Bush House)\bigskip\\
309
+ − 111 Slides \& Code: & KEATS\bigskip\\
442
+ − 112
+ − 113 Office Hour: & Fridays 11:00 -- 12:00\\
+ − 114 Location: & N7.07 (North Wing, Bush House)\bigskip\\
+ − 115
+ − 116 Pollev: & \texttt{\alert{https://pollev.com/cfltutoratki576}}\\ \\
353
+ − 117 %Additionally: & (for Scala) Tuesdays 10:45 -- 11:45\\
22
+ − 118 \end{tabular}
+ − 119 \end{center}
+ − 120
199
+ − 121 %\tiny
+ − 122 %developed since 2004 bv Martin Odersky
+ − 123 %picture about assignments
+ − 124
+ − 125 \begin{textblock}{6}(0.5,0.5)
+ − 126 \includegraphics[scale=0.035]{../pics/assign.jpg}\\[-1mm]
+ − 127 \end{textblock}
22
+ − 128
+ − 129 \end{frame}
+ − 130 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 131
+ − 132
+ − 133 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 134 \begin{frame}[c]
+ − 135 \frametitle{Why Scala?}
+ − 136
352
+ − 137 \begin{textblock}{6}(3,3)
22
+ − 138 \begin{tabular}{l}
442
+ − 139 %%\mbox{}\hspace{-1mm}\includegraphics[scale=0.36]{../pics/twitter.png}\\[-1mm]
22
+ − 140 \includegraphics[scale=0.30]{../pics/linked.png}\\
141
+ − 141 \includegraphics[scale=0.30]{../pics/guardian.jpg}\\[-3mm]
22
+ − 142 \mbox{}\hspace{-2mm}\includegraphics[scale=0.38]{../pics/morgan.png}\\[-3mm]
+ − 143 \includegraphics[scale=0.30]{../pics/suisse.png}\\
23
+ − 144 {\large\bf ...}
+ − 145 \end{tabular}
+ − 146 \end{textblock}
+ − 147
352
+ − 148 \begin{textblock}{6}(9,3)
23
+ − 149 \begin{tabular}{l}
22
+ − 150 \includegraphics[scale=0.20]{../pics/edf.png}\\[-1mm]
+ − 151 \includegraphics[scale=0.08]{../pics/novell.png}\\[-1mm]
+ − 152 \includegraphics[scale=0.30]{../pics/foursquare.png}\\
+ − 153 \includegraphics[scale=0.30]{../pics/hsbc.png}\\
+ − 154 {\large\bf ...}
+ − 155 \end{tabular}
+ − 156 \end{textblock}
+ − 157
199
+ − 158
352
+ − 159 \begin{textblock}{12}(2,11)
+ − 160 \footnotesize
+ − 161 \begin{mybox3}{A former student working now at Quantexa:}\it
+ − 162 ``I am a former student. I graduated last year. I got my dream job
+ − 163 as a backend Scala developer. Most of the Scala I know is from PEP
+ − 164 2018/19. My interviewers said they expect code of a lesser quality
+ − 165 even from people with one year of experience.''
+ − 166 \end{mybox3}
+ − 167 \end{textblock}
199
+ − 168
22
+ − 169 \end{frame}
443
+ − 170
22
+ − 171 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
443
+ − 172 \begin{frame}[c]
22
+ − 173
443
+ − 174 \begin{textblock}{12}(2,2)
+ − 175 \small
+ − 176 \begin{mybox3}{}\it
+ − 177 ``I am currently working as a software engineer at Morgan Stanley
+ − 178 whilst doing my year-in-industry and am using Scala in the
+ − 179 workplace. My team were impressed that I could already program in the
+ − 180 language and even had knowledge of other functional languages. They
+ − 181 told me that most university students are not taught such languages.''
+ − 182 \smallskip\newline
+ − 183 \mbox{}\hfill{}-- Sumaiya Mohbubul 2021/22
+ − 184 \end{mybox3}
+ − 185 \end{textblock}
+ − 186
+ − 187 \begin{textblock}{12}(2,9)
+ − 188 \small
+ − 189 \begin{mybox3}{}\it
+ − 190 ``PEP was my favourite module so far during these 2 years. It motivated
+ − 191 me to apply and get a summer internship offer at S\&P Global as a Scala
+ − 192 developer. The module content was more than enough for me to start
+ − 193 working on the projects here at the company.''\smallskip\newline
+ − 194 \mbox{}\hfill{}-- Szabolcs Nagy 2021/22
+ − 195 \end{mybox3}
+ − 196 \end{textblock}
+ − 197
+ − 198 \end{frame}
+ − 199
+ − 200
+ − 201 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
352
+ − 202 %\begin{textblock}{6}(2,12)
+ − 203 %\begin{bubble}[9.4cm]
+ − 204 % \small
+ − 205 % developed since 2004 by Martin Odersky
+ − 206 % (he was behind Generic Java which was included in Java 5
+ − 207 % \ldots I am using Scala since maybe 2008?)
+ − 208 %\end{bubble}
+ − 209 %\end{textblock}
23
+ − 210
+ − 211 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 212 \begin{frame}[c]
+ − 213 \frametitle{Why Scala?}
+ − 214
+ − 215 \begin{itemize}
34
+ − 216 \item compiles to the JVM\\
+ − 217 \textcolor{gray}{(also JavaScript, native X86 in the works)}\medskip
32
+ − 218 \item integrates seamlessly with Java\medskip
352
+ − 219 \item combines \underline{\bf functional} and {\bf object-oriented} programming\medskip
+ − 220
+ − 221 \item no pointers, no null
+ − 222 %\item it is a bit on the ``theory'' / ``mathematical'' side\\
+ − 223 % \textcolor{gray}{(no pointers, no \texttt{null}, but expressions)}
34
+ − 224
33
+ − 225 \item often one can write very concise and elegant code
+ − 226 \end{itemize}\bigskip\medskip
+ − 227
308
+ − 228 %\small
+ − 229 %alternatives:\\
+ − 230 %Elm, Haskell, Ocaml, F$\sharp$, Erlang, ML, Lisp (Racket), \ldots
23
+ − 231
+ − 232 \end{frame}
22
+ − 233 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
23
+ − 234
+ − 235 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
308
+ − 236 \begin{frame}[t]
32
+ − 237 \frametitle{Java vs Scala}
+ − 238
308
+ − 239 {\lstset{language=java,numbers=right}\fontsize{12}{12}\selectfont
32
+ − 240 \texttt{\lstinputlisting{Point.java}}}
+ − 241
308
+ − 242 \rule{11cm}{0.3mm}\\[-3mm]
33
+ − 243
32
+ − 244 {\lstset{language=scala}\fontsize{12}{12}\selectfont
+ − 245 \texttt{\lstinputlisting{Point.scala}}}
+ − 246
+ − 247 \begin{textblock}{6}(13,3)
+ − 248 \textbf{\large Java}
33
+ − 249 \end{textblock}
+ − 250
308
+ − 251 \begin{textblock}{6}(13,14.3)
32
+ − 252 \textbf{\large Scala}
+ − 253 \end{textblock}
+ − 254
+ − 255 \end{frame}
+ − 256 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 257
174
+ − 258
+ − 259
+ − 260 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 261 \begin{frame}[c]
137
+ − 262 \frametitle{First Steps: Scala Tools}
32
+ − 263
33
+ − 264 \begin{itemize}
308
+ − 265 \item contains a REPL
200
+ − 266 \item I use VS Code and a Scala extension (M'place)
199
+ − 267 \begin{center}
+ − 268 \includegraphics[scale=0.10]{../pics/vscode.png}\\[-10mm]\mbox{}
+ − 269 \end{center}\bigskip
+ − 270
33
+ − 271 \item there is a plugin for Eclipse (called Scala IDE)\medskip
137
+ − 272 \item there is also a plugin for IntelliJ\medskip
33
+ − 273 \end{itemize}
+ − 274
+ − 275 \end{frame}
137
+ − 276 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 277
+ − 278 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
353
+ − 279 \begin{frame}[c, fragile]
+ − 280
+ − 281 \small
+ − 282 My personal keboard shortcut for VS Code\\
+ − 283 (in keybindings.json)\bigskip
+ − 284
360
+ − 285 \footnotesize
+ − 286 \begin{lstlisting}[language=json,numbers=none,xrightmargin=-4cm]
353
+ − 287 [
+ − 288 {
+ − 289 "key": "ctrl+enter",
+ − 290 "command": "workbench.action.terminal.runSelectedText",
+ − 291 "when": "editorTextFocus && editorHasSelection"
+ − 292 }
+ − 293 ]
+ − 294 \end{lstlisting}
+ − 295
+ − 296
+ − 297 \end{frame}
+ − 298 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 299
+ − 300
+ − 301 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
309
+ − 302 \begin{frame}[t]
+ − 303 \frametitle{Why Scala?}
+ − 304
+ − 305 \onslide<2->{%
+ − 306 \begin{center}
+ − 307 {\large\bf{}Money?}\bigskip\\
+ − 308 \begin{tabular}{@{}c@{}c@{}}
+ − 309 \includegraphics[scale=0.2]{../pics/salary1.png} &
+ − 310 \includegraphics[scale=0.2]{../pics/salary2.png}\\
+ − 311 \multicolumn{2}{r@{}}{\footnotesize$^*$ source: Stackoverflow Developer Survey, 2019}
+ − 312 \end{tabular}
+ − 313 \end{center}
353
+ − 314 \RIGHTarrow{2}{2.0}{6.3}
314
+ − 315 \DOWNarrow{2}{10.1}{4.4}
309
+ − 316 }
+ − 317
+ − 318
+ − 319 \small
+ − 320 Elm, Rust, Haskell, Ocaml, F$\#$, Erlang, ML, Lisp (Racket)\ldots
+ − 321
+ − 322 \only<3>{
+ − 323 \begin{textblock}{6}(3.3,6.2)
+ − 324 \begin{bubble}[6.5cm]
+ − 325 \bf\huge\textcolor{RoyalBlue}{Functional Programming!}
+ − 326 \end{bubble}
+ − 327 \end{textblock}}
+ − 328
+ − 329 \end{frame}
+ − 330 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 331
+ − 332
+ − 333 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
137
+ − 334 \begin{frame}[c]
309
+ − 335 \frametitle{\begin{tabular}{c}\\[2mm]
+ − 336 Why Functional\\[-2mm] Programming?\end{tabular}
137
+ − 337 }
+ − 338
+ − 339 %
+ − 340 \mbox{}\\[3.5cm]
+ − 341 \small
309
+ − 342 Elm, Haskell, Ocaml, F$\#$, Erlang, ML, Lisp (Racket)\ldots
137
+ − 343
309
+ − 344 \only<2>{
+ − 345 \begin{textblock}{6}(1.3,6.2)
137
+ − 346 \begin{bubble}[10cm]
+ − 347 \normalsize``If you want to see which features will be in mainstream programming
+ − 348 languages tomorrow, then take a look at functional programming
+ − 349 languages today.''\medskip\small\\
+ − 350 \hfill{}---Simon Peyton Jones (works at Microsoft)\\
+ − 351 \hfill{}main developer of the Glasgow Haskell Compiler
+ − 352 \end{bubble}
+ − 353 \end{textblock}}
+ − 354
309
+ − 355 \only<3>{
200
+ − 356 \begin{textblock}{6}(5,5.8)
+ − 357 \hspace{2mm}\includegraphics[scale=0.06]{../pics/assign.jpg}\\[-1mm]
309
+ − 358 \Large\alert{\hspace{5mm}\textbf{Immutability}}
200
+ − 359 \end{textblock}}
+ − 360
+ − 361
137
+ − 362 \end{frame}
+ − 363 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 364
200
+ − 365 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
309
+ − 366 \begin{frame}[c]
+ − 367
+ − 368 \begin{center}
+ − 369 \includegraphics[scale=0.4]{../pics/pure.png}
+ − 370 \end{center}
+ − 371
+ − 372 \begin{textblock}{6}(9,14)
+ − 373 \tiny$^*$ from ``What pure functional programming is all about?''
+ − 374 \end{textblock}
+ − 375 \end{frame}
+ − 376 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 377
+ − 378
+ − 379 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
200
+ − 380 \begin{frame}[c, fragile]
+ − 381
+ − 382 {\Large Why bother? or\smallskip\\\hfill What is wrong with this?}\bigskip\bigskip
+ − 383
+ − 384
+ − 385 \begin{lstlisting}[language=C,numbers=none]
+ − 386 for (int i = 10; i < 20; i++) {
+ − 387
+ − 388 //...Do something interesting
+ − 389 // with i...
+ − 390
+ − 391 }
+ − 392 \end{lstlisting}
+ − 393
+ − 394
+ − 395 \end{frame}
+ − 396 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 397
+ − 398
+ − 399
137
+ − 400 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 401 \begin{frame}[c]
+ − 402 \mbox{}\\[-21mm]\mbox{}
+ − 403
+ − 404 \begin{center}
+ − 405 \begin{tikzpicture}[scale=1,
+ − 406 node/.style={
+ − 407 rectangle,rounded corners=3mm,
+ − 408 very thick,draw=black!50,
+ − 409 minimum height=18mm, minimum width=20mm,
+ − 410 top color=white,bottom color=black!20}]
+ − 411
+ − 412 \onslide<1-10>{
+ − 413 \node (A) at (0,0) [node]
+ − 414 {\mbox{\includegraphics[scale=0.15]{../pics/cplus2.jpg}}};
+ − 415 \node [above right] at (A.north west) {1986};}
+ − 416
+ − 417 \onslide<2->{
+ − 418 \node (B) at (3.5,0) [node]
+ − 419 {\mbox{\includegraphics[scale=0.15]{../pics/robotron.jpg}}};
+ − 420 \node [above right] at (B.north west) {1988, C};
+ − 421 \draw [->,line width=4mm] (A) -- (B);}
+ − 422
+ − 423 \onslide<3->{
+ − 424 \node (C0) at (6.3,0) {};
+ − 425 \node (C) at (8,0) [node]
+ − 426 {\mbox{\includegraphics[scale=0.15]{../pics/sun.jpg}}};
+ − 427 \node [above right] at (C.north west) {1992, {\small Linux}};
+ − 428 \draw [->,line width=4mm] (B) -- (C0);
+ − 429 \draw [->,line width=4mm] (C0) -- (C);}
+ − 430
+ − 431 \onslide<4->{
+ − 432 \node (D) at (8,-3.3) [node]
+ − 433 {\mbox{\includegraphics[scale=0.2]{../pics/gateway.jpg}}};
+ − 434 \draw [->,line width=4mm] (C) -- (D);
+ − 435 \node [below right] at (D.south west) {1996};}
+ − 436
+ − 437 \onslide<5->{
+ − 438 \node (E) at (4,-3.3) [node]
+ − 439 {\mbox{\includegraphics[scale=0.1]{../pics/appleg4.jpg}}};
+ − 440 \draw [->,line width=4mm] (D) -- (E);
+ − 441 \node [above right] at (E.north west) {2000};}
+ − 442
+ − 443 \onslide<6->{
+ − 444 \node (F0) at (1.5,-3.3) {};
+ − 445 \node (F1) at (1,-3.3) {};
+ − 446 \node (F) at (-0.9,-3.3) [node]
+ − 447 {\mbox{\includegraphics[scale=0.3]{../pics/appleair.png}}};
+ − 448 \draw [->,line width=4mm] (E) -- (F0);
+ − 449 \draw [->,line width=4mm] (F1) -- (F);
+ − 450 \node [above right] at (F.north west) {2012?};}
+ − 451
+ − 452 \onslide<7->{
+ − 453 \node (G) at (-0.9,-6.3) [node]
+ − 454 {\mbox{\includegraphics[scale=0.02]{../pics/applepro.jpg}}};
+ − 455 \draw [->,line width=4mm] (F) -- (G);
+ − 456 \node [right] at (G.west) {\hspace{22mm}2017};}
+ − 457
+ − 458 \end{tikzpicture}
+ − 459 \end{center}
+ − 460
+ − 461
+ − 462 \only<1>{%
+ − 463 \begin{textblock}{10}(2.5,5)
+ − 464 \includegraphics[scale=0.26]{../pics/cplus1.jpg}\\
+ − 465 \footnotesize 64K RAM, no HD, no monitor, lots of cables
+ − 466 \end{textblock}
+ − 467 \begin{textblock}{6}(10.9,4.5)
+ − 468 \includegraphics[scale=0.09]{../pics/mand1.png}
+ − 469 \includegraphics[scale=0.09]{../pics/mand2.png}
+ − 470 \end{textblock}
+ − 471 \begin{textblock}{6}(10.8,2.2)
+ − 472 \huge\bf 3 days
+ − 473 \end{textblock}
+ − 474 }
+ − 475 \only<8->{%
+ − 476 \begin{textblock}{8}(5.8,11.6)
+ − 477 \large\bf
+ − 478 \begin{tabular}{l@{}l}
+ − 479 1986:\, & no Internet\\
+ − 480 & no Amazon\\
+ − 481 & no FB, no mobiles,\ldots\\
+ − 482 \end{tabular}
+ − 483 \end{textblock}
+ − 484 }
+ − 485 \only<9>{
+ − 486 \begin{textblock}{1}(3,3)
+ − 487 \begin{bubble}[9cm]
+ − 488 \begin{tabular}{@{\hspace{8mm}}llll@{\hspace{8mm}}}
+ − 489 \\
200
+ − 490 \multicolumn{4}{c}{\alert{\bf Speedup by Moore's Law}}\medskip\\
137
+ − 491 \textbf{1986:} & 3 days & \textbf{1996:} & 135 mins\\
+ − 492 \textbf{1988:} & 1.5 days & \textbf{1998:} & 67 mins\\
+ − 493 \textbf{1990:} & 18 hs & \textbf{2000:} & 33 mins\\
+ − 494 \textbf{1992:} & 9 hs & \textbf{2002:} & 16 mins\\
+ − 495 \textbf{1994:} & 4.5 hs & \multicolumn{2}{c}{???}\\
+ − 496 \\
+ − 497 \end{tabular}
+ − 498 \small Every two years, computers got twice as powerful.
+ − 499 \end{bubble}
+ − 500 \end{textblock}}
+ − 501
+ − 502 \end{frame}
+ − 503 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 504
+ − 505 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 506 \begin{frame}[c]
200
+ − 507 \frametitle{Seq \;vs\; Par}
137
+ − 508
+ − 509 \begin{center}
+ − 510 \begin{tabular}[t]{@{}l@{}l@{}}
200
+ − 511 \includegraphics[scale=0.14]{../pics/mand4.png} & \hspace{4mm}
+ − 512 \raisebox{0mm}{\includegraphics[scale=0.14]{../pics/mand3.png}}\\
+ − 513 \hspace{6mm}\includegraphics[scale=0.5]{../pics/cpu2.png} &
+ − 514 \hspace{11mm}\includegraphics[scale=0.5]{../pics/cpu1.png}
137
+ − 515 \end{tabular}
+ − 516 \end{center}
+ − 517
+ − 518 \only<2>{
+ − 519 \begin{textblock}{5}(12,2)
+ − 520 \begin{bubble}[2.1cm]
+ − 521 \footnotesize{}in Java or C++\\
+ − 522 \includegraphics[scale=0.50]{../pics/skeleton.jpg}\\
+ − 523 \end{bubble}
+ − 524 \end{textblock}}
+ − 525
+ − 526 \only<3>{
200
+ − 527 \begin{textblock}{14.2}(1,13.5)
140
+ − 528 In FP: Once a variable is created, it is assigned a value and then
308
+ − 529 never changed again $\Rightarrow$ no synchronisation needed\smallskip\\
200
+ − 530 %%\small\textcolor{gray}{(Andrew's second favourite feature of C++)}
137
+ − 531 \end{textblock}}
+ − 532
+ − 533 \end{frame}
+ − 534 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 535
354
+ − 536 %\begin{frame}
+ − 537 %
+ − 538 %\end{frame}
137
+ − 539
354
+ − 540 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 541 %\begin{frame}[c, fragile]
+ − 542 %
+ − 543 %\mbox{}\bigskip\bigskip\bigskip
+ − 544 %
+ − 545 %\begin{lstlisting}[language=Scala,numbers=none]
+ − 546 %for (y <- (0 until H).par) {
+ − 547 % for (x <- (0 until W).par) {
+ − 548 %
+ − 549 % ...
+ − 550 %
+ − 551 % }
+ − 552 %}
+ − 553 %\end{lstlisting}
+ − 554 %
+ − 555 %
+ − 556 %\end{frame}
+ − 557 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
32
+ − 558
+ − 559 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 560 \begin{frame}[c]
23
+ − 561 \frametitle{Types}
+ − 562
+ − 563 \begin{itemize}
33
+ − 564 \item Base types\smallskip
23
+ − 565
33
+ − 566 \begin{tabular}{@{}l@{}}
23
+ − 567 \textcolor{codegreen}{\texttt{Int}},
+ − 568 \textcolor{codegreen}{\texttt{Long}},
+ − 569 \textcolor{codegreen}{\texttt{BigInt}},
+ − 570 \textcolor{codegreen}{\texttt{Float}},
+ − 571 \textcolor{codegreen}{\texttt{Double}}\\
+ − 572 \textcolor{codegreen}{\texttt{String}},
25
+ − 573 \textcolor{codegreen}{\texttt{Char}}\\
+ − 574 \textcolor{codegreen}{\texttt{Boolean}}
23
+ − 575 \end{tabular}
+ − 576
33
+ − 577 \item Compound types \smallskip
23
+ − 578
33
+ − 579 \begin{tabular}{@{}ll@{}}
23
+ − 580 \textcolor{codegreen}{\texttt{List[Int]}} & lists of Int's \\
+ − 581 \textcolor{codegreen}{\texttt{Set[Double]}} & sets of Double's \\
+ − 582 \textcolor{codegreen}{\texttt{(Int, String)}} & Int-String pair\\
+ − 583 \textcolor{codegreen}{\texttt{List[(BigInt, String)]}} &
+ − 584 lists of BigInt-String\\
+ − 585 & pairs\\
200
+ − 586 \textcolor{codegreen}{\texttt{List[List[Int]]}} & list of lists of Int's\\ \textcolor{codegreen}{\texttt{Option[Int]}} & options of Int's \\
23
+ − 587 \end{tabular}
+ − 588
+ − 589 \end{itemize}
+ − 590
+ − 591 \end{frame}
+ − 592 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 593
32
+ − 594 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
200
+ − 595 %\begin{frame}[c]
+ − 596 %\frametitle{An Http Request}
32
+ − 597
200
+ − 598 %\begin{textblock}{1}(2,5)
+ − 599 %\begin{tabular}{c}
+ − 600 %\includegraphics[scale=0.15]{../pics/servers.png}\\[-2mm]
+ − 601 %\small Server
+ − 602 %\end{tabular}
+ − 603 %\end{textblock}
32
+ − 604
200
+ − 605 %\begin{textblock}{1}(5.6,4)
+ − 606 % \begin{tikzpicture}[scale=1.1]
+ − 607 % \draw[white] (0,1) node (X) {};
+ − 608 % \draw[white] (2,1) node (Y) {};
+ − 609 % \draw[white] (0,0) node (X1) {};
+ − 610 % \draw[white] (2,0) node (Y1) {};
+ − 611 % \draw[white] (0,-1) node (X2) {};
+ − 612 % \draw[white] (2,-1) node (Y2) {};
+ − 613 % \draw[red, <-, line width = 2mm] (X) -- (Y);
+ − 614 % \node [inner sep=5pt,label=above:\textcolor{black}{GET request}] at ($ (X)!.5!(Y) $) {};
+ − 615 % \draw[red, ->, line width = 2mm] (X1) -- (Y1);
+ − 616 % \node [inner sep=5pt,label=above:\textcolor{black}{webpage}] at ($ (X1)!.5!(Y1) $) {};
+ − 617 % \draw[red, <-, line width = 2mm] (X2) -- (Y2);
+ − 618 % \node [inner sep=7pt,label=above:\textcolor{black}{POST data}] at ($ (X2)!.5!(Y2) $) {};
+ − 619 % \end{tikzpicture}
+ − 620 %\end{textblock}
32
+ − 621
+ − 622
200
+ − 623 %\begin{textblock}{1}(9,5.5)
+ − 624 %\begin{tabular}{c}
+ − 625 %\includegraphics[scale=0.15]{../pics/laptop.png}\\[-2mm]
+ − 626 %\small Browser
+ − 627 %\end{tabular}
+ − 628 %\end{textblock}
+ − 629 %\end{frame}
32
+ − 630 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 631
+ − 632 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
200
+ − 633 %\begin{frame}[c]
+ − 634 %
+ − 635 %{\lstset{language=Java}\fontsize{7}{8}\selectfont
+ − 636 %\texttt{\lstinputlisting{URLReader.java}}}
+ − 637 %
+ − 638 %\end{frame}
32
+ − 639 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 640
33
+ − 641 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
356
+ − 642 \begin{frame}[c, fragile]
359
+ − 643 %%\frametitle{General Scheme of}
356
+ − 644
358
+ − 645 \small
+ − 646 \begin{lstlisting}[language=Scala,numbers=none]
+ − 647 def fname(arg1: ty1, arg2: ty2,..., argn: tyn): rty = {
356
+ − 648
358
+ − 649 ....
356
+ − 650
+ − 651 }
+ − 652 \end{lstlisting}
+ − 653
+ − 654
+ − 655 \end{frame}
+ − 656 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 657
359
+ − 658 \begin{frame}[c, fragile]
+ − 659
+ − 660 \begin{lstlisting}[language=Scala,numbers=none]
+ − 661 def average(xs: List[Int]) : Int = {
+ − 662 val s = xs.sum
+ − 663 val n = xs.length
+ − 664 s / n
+ − 665 }
+ − 666 \end{lstlisting}
+ − 667
+ − 668
+ − 669 \end{frame}
+ − 670 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 671
+ − 672
+ − 673
+ − 674
309
+ − 675
356
+ − 676 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 677 %\begin{frame}[c]
+ − 678 % \frametitle{Coursework Dates}
+ − 679 %
+ − 680 %Similar to C++:\bigskip
+ − 681 %
+ − 682 %\begin{itemize}
+ − 683 % \item Preliminary Parts: Wednesdays 4pm
+ − 684 % \begin{itemize}
+ − 685 % \item Preliminary Part 6: 3\% (13 November)
+ − 686 % \item Preliminary Part 7: 4\% (20 November)
+ − 687 % \item Preliminary Part 8: 4\% (27 November)
+ − 688 % \item Preliminary Part 9: 4\% (5 December)
+ − 689 % \end{itemize}\medskip
+ − 690 % \item Core Part: 35\% (15 January 2020)\bigskip
+ − 691 %\end{itemize}
+ − 692 %\end{frame}
+ − 693 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
309
+ − 694
+ − 695
+ − 696
+ − 697 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
356
+ − 698 %\begin{frame}[c]
+ − 699 %\frametitle{Coursework}
+ − 700 %
+ − 701 %\begin{itemize}
+ − 702 %\item Sorry, I might have been a bit wordy:\\
+ − 703 % Part 6 of CW description is 7 pages, but
+ − 704 % I only needed \mbox{< 100} loc for \emph{all} Part 6.\bigskip
+ − 705 %
+ − 706 %\item there is feedback when pushing code to github\medskip
+ − 707 %
+ − 708 %\item there are \texttt{jar}-files you can use to test
+ − 709 % my reference implementation\bigskip
+ − 710 %
+ − 711 %\item we want you to learn FP!\smallskip\\ \alert{\bf no vars}, no mutable
+ − 712 % data-structures\\ \quad{}e.g.~no \texttt{Arrays}, no \texttt{ListBuffer}
+ − 713 %\end{itemize}
+ − 714 %
+ − 715 %\LEFTarrow{1}{11}{11.8}
+ − 716 %\end{frame}
140
+ − 717 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 718
+ − 719 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 720
+ − 721 \begin{frame}[c, fragile]
+ − 722 \frametitle{The Joy of Immutability}
+ − 723
+ − 724 \begin{itemize}
+ − 725 \item If you need to manipulate some data in a list say, then you make
+ − 726 a new list with the updated values, rather than revise the original
+ − 727 list. Easy!\medskip
+ − 728
+ − 729 {\small
+ − 730 \begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-1mm]
+ − 731 val old_list = List(1, 2, 3, 5)
+ − 732 val new_list = 0 :: old_list
308
+ − 733 // -> List(0, 1, 2, 3, 4, 5)
140
+ − 734 \end{lstlisting}}
+ − 735
200
+ − 736 \item You do not have to be defensive about who can access the data.
+ − 737
+ − 738 \item You can look at your code in isolation.
140
+ − 739 \end{itemize}
+ − 740 \end{frame}
+ − 741
+ − 742
+ − 743 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 744
+ − 745 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 746 \begin{frame}[t]
+ − 747 \frametitle{Email: Hate 'val'}
+ − 748
308
+ − 749 \mbox{}\\[-23mm]\mbox{}
140
+ − 750
+ − 751 \begin{center}
+ − 752 \begin{bubble}[10.5cm]
354
+ − 753 Subject: \textbf{Hate '\textbf{\texttt{val}}'}\hfill 01:00 AM\hspace{1cm}\medskip\\
140
+ − 754
+ − 755 Hello Mr Urban,\medskip\\
+ − 756
+ − 757 I just wanted to ask, how are we suppose to work
+ − 758 with the completely useless \textbf{\texttt{val}}, that can’t be changed ever? Why is
+ − 759 this rule active at all? I’ve spent 4 hours not thinking on the
+ − 760 coursework, but how to bypass this annoying rule. What’s the whole
+ − 761 point of all these coursework, when we can’t use everything Scala
+ − 762 gives us?!?\medskip\\
+ − 763
+ − 764 Regards.\\
+ − 765 \mbox{}\hspace{5mm}\textcolor{black!50}{<<deleted>>}\\
+ − 766 \end{bubble}
+ − 767 \end{center}
+ − 768
+ − 769 \end{frame}
+ − 770 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 771
+ − 772 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 773 \begin{frame}[c]
+ − 774
+ − 775 \mbox{}\\[-25mm]\mbox{}
+ − 776
+ − 777 \begin{center}
+ − 778 \begin{bubble}[10.5cm]
354
+ − 779 Subject: \textbf{Re: Hate '\textbf{\texttt{val}}'}\hfill 01:02 AM\hspace{1cm}\bigskip\bigskip\\
140
+ − 780
+ − 781 \textcolor{black!70}{
+ − 782 \textit{\large<<my usual rant about fp\ldots\\ concurrency bla bla\ldots{} better programs
+ − 783 yada>>}}\bigskip\bigskip\bigskip
+ − 784
+ − 785 PS: What are you trying to do where you desperately want to use \texttt{var}?
+ − 786 \end{bubble}
+ − 787 \end{center}
+ − 788
+ − 789 \end{frame}
+ − 790 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 791
+ − 792 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 793 \begin{frame}[c,fragile]
+ − 794
+ − 795 \begin{textblock}{6}(0.5,0.5)
+ − 796 \begin{bubble}[11.5cm]
+ − 797 \small
354
+ − 798 Subject: \textbf{Re: Re: Hate '\textbf{\texttt{val}}'}\hfill 01:04 AM\hspace{1cm}\medskip\\
140
+ − 799
+ − 800 \textbf{Right now my is\_legal function works fine:}
+ − 801
+ − 802 \footnotesize\begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-1mm]
+ − 803 def is_legal(dim: Int, path: Path)(x: Pos): Boolean = {
+ − 804 var boolReturn = false
+ − 805 if(x._1 > dim || x._2 > dim || x._1 < 0 || x._2 < 0) {
+ − 806 else { var breakLoop = false
+ − 807 if(path == Nil) { boolReturn = true }
+ − 808 else { for(i <- 0 until path.length) {
+ − 809 if(breakLoop == false) {
+ − 810 if(path(i) == x) {
+ − 811 boolReturn = true
+ − 812 breakLoop = true
+ − 813 }
+ − 814 else { boolReturn = false }
+ − 815 } else breakLoop
+ − 816 }
+ − 817 }
+ − 818 boolReturn
+ − 819 }
+ − 820 \end{lstlisting}
+ − 821 \end{bubble}
+ − 822 \end{textblock}
+ − 823
+ − 824 \begin{textblock}{6}(8.2,11.8)
+ − 825 \begin{bubble}[5.5cm]\footnotesize\bf
+ − 826 \ldots{}but I can’t make it work with boolReturn being val. What approach would
+ − 827 you recommend in this case, and is using var in this case justified?
+ − 828 \end{bubble}
+ − 829 \end{textblock}
+ − 830
+ − 831 \only<2>{
+ − 832 \begin{textblock}{6}(0.3,11.8)
+ − 833 \begin{bubble}[3.1cm]
+ − 834 \textbf{Me:}
+ − 835 \raisebox{-12mm}{\includegraphics[scale=0.08]{../pics/throwup.jpg}}
+ − 836 \end{bubble}
+ − 837 \end{textblock}}
+ − 838
+ − 839 \end{frame}
+ − 840 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 841
+ − 842 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 843 \begin{frame}[t,fragile]
+ − 844
+ − 845 \mbox{}\\[-25mm]\mbox{}
+ − 846
+ − 847 \begin{textblock}{6}(0.5,2)
+ − 848 \begin{bubble}[11.5cm]
+ − 849 Subject: \textbf{Re: Re: Re: Hate '\textbf{\texttt{val}}'}\hfill 01:06 AM\bigskip\\
+ − 850 \small
+ − 851
+ − 852 OK. So you want to make sure that the \texttt{x}-position is not outside the
+ − 853 board....and furthermore you want to make sure that the \texttt{x}-position
+ − 854 is not yet in the path list. How about something like\bigskip
+ − 855
+ − 856 \footnotesize\begin{lstlisting}[language=Scala, numbers=none, xleftmargin=-1mm]
+ − 857 def is_legal(dim: Int, path: Path)(x: Pos): Boolean =
+ − 858 ...<<some board conditions>>... && !path.contains(x)
+ − 859 \end{lstlisting}\bigskip
+ − 860
+ − 861 \small Does not even contain a \texttt{val}.
+ − 862 \end{bubble}
+ − 863 \end{textblock}
+ − 864
+ − 865 \begin{textblock}{6}(7,12)
+ − 866 \footnotesize\textcolor{black!50}{(This is all on one line)}
+ − 867 \end{textblock}
+ − 868
+ − 869 \end{frame}
+ − 870 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 871
+ − 872
+ − 873 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 874 \begin{frame}[t,fragile]
+ − 875
+ − 876 \mbox{}\\[-15mm]\mbox{}
+ − 877
+ − 878 \begin{textblock}{6}(1,3)
+ − 879 \begin{bubble}[10.5cm]
+ − 880 Subject: \textbf{Re: Re: Re: Re: Hate '\textbf{\texttt{val}}'}\hfill 11:02 AM\bigskip\bigskip\\
+ − 881
+ − 882 THANK YOU! You made me change my coding perspective. Because of you,
+ − 883 I figured out the next one\ldots
+ − 884 \end{bubble}
+ − 885 \end{textblock}
+ − 886
+ − 887 \only<2>{
+ − 888 \begin{textblock}{6}(0.3,11.8)
+ − 889 \begin{bubble}[3.1cm]
+ − 890 \textbf{Me:}
+ − 891 \raisebox{-12mm}{\includegraphics[scale=0.15]{../pics/happy.jpg}}
+ − 892 \end{bubble}
+ − 893 \end{textblock}}
+ − 894
+ − 895 \end{frame}
+ − 896 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 897
427
+ − 898 \begin{frame}[t,fragile]
+ − 899
+ − 900 \begin{bubble}[10.5cm]
+ − 901 "PEP was my favourite module so far during these 2 years. It motivated me to apply and get a summer internship offer at S\&P Global as a Scala developer. The module content was more than enough for me to start working on the projects here at the company." -- Szabolcs Daniel Nagi (PEP 2021)
+ − 902 \end{bubble}
+ − 903 \end{frame}
+ − 904 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 905
140
+ − 906
+ − 907 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 908 \begin{frame}[c]
309
+ − 909 \frametitle{Conclusion for Today}
33
+ − 910
+ − 911 \begin{itemize}
309
+ − 912 \item Scala is still under development, 2.13.1 came out in Sept.\\
+ − 913 (the compiler is terribly slow)\medskip
33
+ − 914 \item {\bf\url{http://www.scala-lang.org/}}\bigskip
140
+ − 915
+ − 916 \item it is a rather \textbf{\alert{deep}} language\ldots i.e.~gives
+ − 917 you a lot of rope to shoot yourself\bigskip
33
+ − 918
140
+ − 919 \item learning functional programming is not easy\ldots{}when you have
200
+ − 920 spent all of your career thinking in an imperative way, it is hard to
140
+ − 921 change\bigskip\medskip
+ − 922
200
+ − 923 \item hope you have fun with Scala and the assignments
33
+ − 924 \end{itemize}
+ − 925 \end{frame}
+ − 926 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 927
+ − 928 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
356
+ − 929 %\begin{frame}[c]
+ − 930 %\frametitle{\begin{tabular}{c}\\[0cm]\alert{Questions?}\end{tabular}}
+ − 931 %
+ − 932 %\begin{center}
+ − 933 % \begin{tabular}[t]{@{}l@{}l@{}}
+ − 934 % \includegraphics[scale=0.1]{../pics/mand4.png} & \hspace{4mm}
+ − 935 % \raisebox{0mm}{\includegraphics[scale=0.1]{../pics/mand3.png}}
+ − 936 % \end{tabular}
+ − 937 %\end{center}
+ − 938 %
+ − 939 %\begin{center}
+ − 940 % My Office Hours: Thursdays 12 -- 14\\
+ − 941 % And specifically for Scala: Tuesdays 10:45 -- 11:45
+ − 942 %\end{center}
+ − 943 %\end{frame}
33
+ − 944 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
314
+ − 945
+ − 946 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
356
+ − 947 %\begin{frame}[t]%
+ − 948 %
+ − 949 %\begin{center}
+ − 950 %\includegraphics[scale=0.4]{../pics/blow.png}
+ − 951 %\end{center}
+ − 952 %
+ − 953 %\begin{textblock}{14}(2,12.4)
+ − 954 %\Large\bf{}Mind-Blowing\\ Programming Languages: C/C++
+ − 955 %\end{textblock}
+ − 956 %\end{frame}
314
+ − 957 %%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+ − 958
360
+ − 959 \begin{frame}[c]
+ − 960 \begin{center}
+ − 961 \includegraphics[scale=0.4]{../pics/fun.png}
+ − 962 \end{center}
+ − 963 \end{frame}
32
+ − 964
416
+ − 965 \begin{frame}<1-20>[t]
360
+ − 966
+ − 967 \end{frame}
32
+ − 968
22
+ − 969 \end{document}
+ − 970
+ − 971 %%% Local Variables:
+ − 972 %%% mode: latex
+ − 973 %%% TeX-master: t
+ − 974 %%% End:
+ − 975
140
+ − 976
+ − 977 “Functional programming is often regarded as the best-kept secret of
+ − 978 scientific modelers, mathematicians, artificial intelligence
+ − 979 researchers, financial institutions, graphic designers, CPU designers,
+ − 980 compiler programmers, and telecommunications engineers.â€
+ − 981
+ − 982 The Wikipedia F# page