Curve fitting program for the HP-35s (combines the manual's programs into one label)

Chapter 16 of the HP-35s manual has programs for 4 different curve fittings. They are spread accross several labels and so take up valuable labels that could be used for other programs.

I have combined them into one label.

Here are instructions:

and here is the program listing:

Comments, suggestions & corrections welcome.

(Edit: updated as C065, C114 & C118 are e^x and C128 & C135 are y^x and were showing incorrectly)