Function: math[normale] - computes normal lines
Calling Sequence:
normale(f, x=a);
Parameters:
f -
expression in x
x -
a name
a -
a point (numerical or symbolic value)
Description:
normale computes the normal line of a function f in x at a point a.
This function is part of the math package, and so can be used only after performing the command with(math) or with(math, normale).
Examples:
> with(math, normale):
> normale(ln(x), x=1);
> normale(x^2-2*x+t, x=0);
> normale(x, x=t);
See Also:
math/tangente , math/curveplot , math/slopefn , math/lineangle .
Version History:
Version 1.0 as of December 01, 1997