ACOS |
acos returns its parameter's arc-cosine.
acos(num_exp)
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Element |
Description |
Restrictions |
|
num_exp |
Numeric Expression |
-1 <= num_exp <= +1 |
Y = acos(sqr(3)/2)
This function returns the arc-cosine of the parameter expressed in the current angular mode.
acos is the inverse of the cos function.
The result is the Double type.
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Error |
Description |
|
ERMODE (10) |
The parameter is not numeric. |
|
ERTRIG (12) |
The parameter is not in the [ -1 , +1 ] interval. |
SIN - COS - TAN - ASIN - ATAN - ATAN2 - ANGLE
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