MATLAB: The use of Interp1

Question

Wondering what method is used if the interp1 routine is defined as:

interp1(x,y,z,[],'extrap')

Which interpolation/extrapolation methods are implied in this command?

Thanks,

Louis

Answer 1

If method is input as empty, then it is set to linear inside interp1().

It is straightforward to see this if you

>> edit interp1