[OS X TeX] Gems from Japan: RPN2TeX and AutoTeX

[Michael Hoppe]

>  I found this gem from Japan: RPN2TeX
>  <http://homepage.mac.com/wataru_maeda/software/RPN2TeX/index.html>,

A truly great program.

>   For anyone who is not used to RPN (I used it a lot 20 years
>  ago when I had my trusty HP 41 calculator in High School), there is a
>  learning curve, but once you get over it you can type equations quite fast
>  and efficiently.

As a user of HP handhelds I have to agree.  But ...

>  The paths in the preferences of both programs must be changed to reflect
>  your LaTeX installation, in my case Gerben Wierda's. For example, for
>  RPN2TeX both my paths are "/usr/local/teTeX/bin/powerpc-apple-darwin6.8/".

... that gives me a Spinning Wheel when I want to see the preview. 
Do you have some hints?

Michael

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