Description:
Syntax:
acos(number)
Note:
The function computes arc consine value of a real number between -1 and 1.
Parameter:
number |
A real number between -1 and 1e. |
Return value:
Numeric value
Example:
acos(-1) |
3.141592653589793 |
acos(cos(pi()/2)) |
1.5707963267948966 |
acos(cos(0)) |
0.0 |
Related function: