mohanrajendran/Exercise1-4.md

Last active August 29, 2015 14:03

Star () You must be signed in to star a gist
Fork () You must be signed in to fork a gist

Learn more about clone URLs
Clone this repository at <script src="https://gist.github.com/mohanrajendran/3f8e28608fa308f7d365.js"></script>
Save mohanrajendran/3f8e28608fa308f7d365 to your computer and use it in GitHub Desktop.

SICP Exercise 1.4

Raw

(define (a-plus-abs-b a b)
  ((if (> b 0) + -) a b))

When the if function is evaluated, based on the condition, the operator + or - is applied on the operands a and b. If b > 0, + operator is used, evaluating to a+b. Otherwise, - operator is issued which yields a-b. Ultimately, we evaluate a+|b|.