[ATM] Osloedu (Linux) and Schmidt polynomials

[Dominic-Luc Webb <dlwebb@canit.se>]

I wrote some code aimed at Linux a while back to get the 2nd, 4th
and 6th power polynomials and plot curve for the Schmidt corrector
based on "Telescope Optics: Evaluation and Design", Rutten and van
Venrooij. See section 21.11. I am pretty sure it gives correct
calculations, no complaints of problems so far:

http://www.canit.se/~dlwebb/catadioptric/310schmidt/schcorr.html

I have not used Oslo in a few years and just started using Osloedu,
the Linux version. I now discover that my original lens files I
created for my Schmidt designs give errors when I try to open with
Osloedu. Looking through Osloedu, I notice the window where I enter
the polynomial terms in the new version starts at 4th power, accepting
6th, 8th and 10th terms, but no hint where to enter the first term
(A^2). The spot diagrams I am getting are clearly worse than what I
used to get and not sure how to do this. Anyone know about this or
have suggestions?

Also, does anyone here have "known good" code to confirm my software
is correct?

Dominic-Luc Webb

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