calculate intercept of two data sets

[sloth4z]

Is there a way to calculate the intercept of two data sets?

Example: I have a set of data "VX" which contains 100 points marking the X Points for data set 1 and 2. I also have "VY1" which contains 100 points marking the Y points for data set 1, and "VY2" which contains 100 points marking the Y points for data set 2. I want to calculate the X point that will return the same value when I do a linear interpolation of both sets of data.

In other words; how do I find the x value so that linterp(VX,VY1,X)=linterp(VX,VY2,X)?

 

[sloth4z]

After reading my own post I figured out I can use a solve block. I am still open to any suggestions you guys can offer.

X':=1
Given
linterp(VX,VY1,X')[ctrl+=]linterp(VX,VY2,X')
X:=Find(X')

 

[IRstuff]

That generally works well, with the possible exception when the intercept is near the end point of either line. I've done this on some specific problems and endpoints can give you squirrelly results.

TTFN

FAQ731-376