sjkaliski/numbers.js — pull request #82 by KartikTalwar (2012-12-28 00:28:31+00:00)
Title: Bug fix from issue #81

**Changes**

- `basic.subtraction` now behaves like as described by the function documentation
- `basic.subtraction` checks all elements in the array for incorrect types
- `basic.product` checks all elements in the array for incorrect types