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