InterX, interpolatex, xinter
Calling convention:
- interx parameters described below
- interpolatex
- xinter
Parameter formats:
- (block 1st point, block 2nd point, value y)
- (value x1, value y1, value x2, value y2, value y)
Returns the x coordinate where the y-coordinate equals y along the line formed by either (x1, y1) - (x2, y2) or 1st point to 2nd point.