tan

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

Syntax

(tan expr)

expr - floating point number or expression
returns - the tangent of the number

Description

The 'tan' function calculates the tangent of the 'expr' and returns the result. The 'expr' is in radians.

Examples

(tan 0.0)             ; returns 0
(tan 1.0)             ; returns 1.55741
(tan (/ 3.14159 2))   ; returns 753696
(tan 2.0)             ; returns -2.18504
(tan 3.0)             ; returns -0.142547
(tan 3.14159)         ; returns -2.65359e-06
(tan 4.5)             ; returns 4.63733

Common Lisp: Common Lisp allows for integer numbers, which XLISP does not support for 'tan'.

See the tan function in the XLISP 2.0 manual.

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