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cos

To calculate the cosine
The function returns the cosine of an angle in radians. The result is a numeric value between -1 and 1.

Syntax

cos(number)

Return

number

Examples

cos(x) To calculate the cosine of a given number x between -1 and 1.
1
cos(-0.25)
Result: 0.9689124217106447

See also

​acos, which calculates the arccosine of a number.