lazer@mnetor.UUCP (Lazer Danzinger) (09/14/89)
If anyone has code for a function written in 'C' that returns the epsilon
of its (double) parameter, I would be really appreciative.
This function is commonly available under Basic as an instrinsic
function. Its definition is something like this:
double eps(x)
double x;
{
return Max(Max(x'-x, x-x"), epsilon);
}
where x' is the successor of x, and x" is the predecessor of x, and
espilon is the smallest number representable by the computer, eg.
MINDOUBLE (in values.h), or DBL_MIN (in float.h, under ANSI).
Thanks in advance.
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