Recent content by GB_Joe

Well... it didn't!:confused: I've ended up with identical data values to when I produced the blue curves. Initially I did get the same as the red curves, but I was using values of x_{16} in the second equation instead of x_{15} and x_{20}. I don't trust my maths enough to do this kind...

Okay then... I think I may have figured this out, but it's pretty long-winded. Do you think there's a simpler way to do this? If we say the lower curve is "15" and the upper is "20", the interpolated ones are 16...19. So, x_{16} = (4x_{15}+x_{20})/5 and...

@ uart: I am still here! Sorry, I'm a part-timer, looking after the kids Weds. and Thurs. so try to avoid thinking about work then! Now that you've said it, it's obvious... thank you! The reason that one is right is that division across the x-axis is what you get by experiment. These are...

Okay! My two starting polynomials both go to f(x) = 0 at the maximum limit of x. My attempts at interpolation all go down well below 0. I've attached a couple of pics to make it easier to understand. The first shows simple interpolation of values, all nice and neat, just what you'd expect...

Hi everyone! Having spent many fruitless hours Googling this I stumbled upon this forum, and am hoping you may be able to help... I'm looking for a way to interpolate between two polynomials. These two lines are related and run along in a near-parallel fashion, and I want to divide the gap...