Description:
Compute the
cosine value.
Syntax:
cos(numberExp)
Note:
The parameter numberExp is defined
in radians.
Parameters:
|
numberExp
|
The radian number of the cosine to be
computed
|
Return value:
Float type
Example:
|
cos(pi())
|
-1.0
|
|
cos(pi(2))
|
1.0
|
Related functions:
sin()
tan()