I attached my program and the problem of it is basically to find the intersection point of two arrays plot.

[msbalen]

I have two arrays with a few points, and there´s an intersection point that do not belong to any array. My program find the range (x scale) where occurs the intersection, but i cant find the specific number of intersection. I think the best way is linear interpolation. Thanks.

[Randy_H]

msbalen,

I agree that linear interpolation is the best method in your case. The other option is to use a polynomial fit for each curve and then find where those curves are equal.

Randy Hoskin
Applications Engineer
National Instruments
http://www.ni.com/ask