learning-haskell/02-hello-haskell/2.11-chapter-exercises.md

Chapter Exercises

Parenthesization

1. (2 + (2 * 3)) - 1
2. (^) 10 (1 + 1)
3. ((2 ^ 2) * (4 ^ 5)) + 1

Equivalent expressions

1. Equivalent.
2. Equivalent.
3. Different. (-) 37 400 is equal to 37 - 400
4. Different. Integer division versus real division.
5. Different. Multiplication has higher precedence.

More fun with functions

In the REPL:

let z = 7; x = y ^ 2; waxOn = x * 5; y = z + 8

1. waxOn is a number equal to 1125. So it would be as if you replace waxOn by 1125.
2. /
3. This will return 1125 * 3 or 3375
4. see src/chapter.hs
5. see src/chapter.hs
6. see src/chapter.hs
7. waxOff is basically an for the triple function.