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atan
To calculate the arctangent
The function returns the arctangent of a number.
Syntax
atan(number)
Return
number
Example
atan(x) to calculate the arctangent of a given number x between -1 and 1.
atan(15)Result: 1.5042281630190728
See also
atan2 which calculates the arctangent of the quotient.
tan which calculates the tangent.
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