pep-material: comparison progs/lecture1.scala

equal deleted inserted replaced

-:305e1dcdb3bc
+:9476aee44eed
 test()
+////////////
+// calculating pi
+def f(n: BigInt) = BigDecimal(4 * n * n) / BigDecimal(4 * n * n - 1)
+2 * (BigInt(1) to BigInt(100000)).map(f).product
+(1 to 1000).sum
+(1 to 1000).product
 // Further Information
 //=====================
 // The Scala homepage and general information is at
 //
+// declarative
+users.filter(_.email.endsWith("@gmail.com"))
+// imperative
+val result = ListBuffer[User]()
+for(user <- users) {
+if(user.email.endsWith("@gmail.com")) {
+result += user
+}
+}
+result.toList