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| Module: | Prelude |
|---|---|
| Function: | cos |
| Type: | Floating a => a -> a |
| Class: | Floating |
| Description: | cosine |
| Related: | acos, acosh, asin, asinh, atan, atanh, cosh, sin, sinh, tan, tanh |
| Keywords: | cosine, trigonometry |
| MATHWORLD | Cosine |
Input: cos (pi/2)
Output: 0.0