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| Module: | Prelude |
|---|---|
| Function: | signum |
| Type: | Num a => a -> a |
| Class: | Num |
| Description: | it returns -1 for negative numbers, 0 for zero, and 1 for positive numbers |
| Related: | abs, negate |
Input: signum 3
Output: 1
Input: signum (-3.2)
Output: -1.0