The ACOS(a)
function calculates the arc cosine of an expression a
.
The expression a must be of absolute value less than or equal to 1. The value returned by ACOS lies in the range [0,]
(that is, 0 ≤ ACOS(a) ≤ Π
).
Arguments
a |
Any valid function expression.
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Number of Arguments: 1
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