Am 27.02.2018 um 00:11 schrieb Hul Tytus:
/*
extend a line dst distance from pt1 perpendicular to line to pt2 and in
the plane and direction defined by pt3. res[] is for the point at the
end of the extended line.
*/
whatev(pt1, pt2, pt3, dst, res)
double pt1[], pt2[], pt3[];
double dst, res[];
{
While it's an improvement that this time round you at least found the
right newsgroup, the problem statement is still lacking clarity to a
degree that makes it almost incomprehensible.
For starters, there is no "plane defined by a point". And "line to pt2"
is equally vague: line from where to pt2?
In other words: please try again, and try to be less cryptic about it.
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