extrapolation and intersection

[Marclv]

I have a list of 10 points ( Voltage=f(Current) ) measured by multimeters. I interpolated them with linear fit.vi.  Now I have to extrapolate this line to find the offset of current and voltage. How is this possible with labview?

[johnsold]

Linear fit.vi returns Slope and Intercept. With those you can evaluate the equation of the line (y = m*x+b) to find what you want. The Intercept value itself may be the offset you are looking for.

Lynn