VARKON Version 1.15 1997-10-24

tang - Function

Geometrical function


Description

Returns the normalised tangent of a line, arc or curve.

Syntax

tang(ref,t)

REF	ref;
FLOAT	t;

Principal parameters

ref	- Identity of line, arc or curve

Optional parameters

t	- Parameter value, default = 0.0

Return value

A VECTOR value equal to the requested normalised tangent in the specified position.