Function: math[nondiff] - points of a function that are not differentiable
Calling Sequence:
nondiff(f, x);
Parameters:
f - any algebraic expression in x
x - a name
Description:
The function returns all those points at which the function f is continuous but not differentiable.
The return is a set.
This function is part of the math package, and so can be used only after performing the command with(math) or with(math, nondiff).
Examples:
> with(math, nondiff):
> nondiff(abs(x), x);
> nondiff(abs(ln(x-3)), x);
> nondiff(arcsin(2*abs(x)*sqrt(1-x^2)), x);
See Also:
math/extrema , math/END , math/singularity , math/isCont , math/cont .
Version History:
Version 1.0 as of January 02, 1998
Version 1.01 as of February 21, 1998
Version 1.02 as of December 14, 1998