Definition: | atom x2 = cos(atom x1) |
Description: | Return the cosine of x1, where x1 is in radians. |
Comments: | This function may be applied to an atom or sq_cos() to all elements of a sequence.
The rules for sequence operations apply.
Note that the following diagram uses degrees, ie cos(30*CD_DEG2RAD) = 0.866, where CD_DEG2RAD is defined in pGUI as PI/180. ![]() |
Example: |
x = cos(.5) -- x is 0.8775826 |
See Also: | sin, tan, log, sqrt |