Nyquist / XLISP 2.0  -  Contents | Tutorials | Examples | Reference

atan


Type:   -   function (subr)
Source:   -   xlmath.c

Syntax

(atan expr [expr2])
expr - an integer or floating point expression
expr2 - an optional divisor [default value is 1.0]
returns - the arctangent of the division of expr and expr2

Description

The 'atan' function returns the arc tangent of the division of 'expr' and 'expr2'. The result is in radians.

Examples

(atan  0.0)  =>  0
(atan  1.0)  =>  0.785398
(atan -1.0)  => -0.785398
(atan    0)  =>  0

See also:

  Back to Top


Nyquist / XLISP 2.0  -  Contents | Tutorials | Examples | Reference