ACOS returns a trigonometric arc cosine of a numerical expression

Syntax

ACOS(NumExp)

Arguments 

• NumExp is a numerical expression 

Remarks

1. ACOS returns the arc cosine (inverse cosine) of NumExp; that is, the angle with a cosine of NumExp. The result is in Radians.
2. Please note that input values should be between -1 and 1

Examples

ACOS(0.5)

returns 1.05

Example knowledgebases

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