atan() Function

Returns the arctangent(s) of the specified number(s) in radians.

Syntax

atan( number, … )

number: (Decimal) A number or array of numbers, the arctangent(s) of which will be returned.

Returns

Decimal

Notes

This function can only be applied for numbers between -1 and 1.

Examples

atan(1) returns 0.7853981633974483

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