PixelMath: Need simple instructions

[Beevo17]

I need a simple set of instructions for constructing expressions in PixelMath. I have Warren Keller’s book, but have not found what I need there. Specifically, I a working in narrowband and need to have a way to custom combine channels.

...thanks, Stephen

[pfile]

https://jonrista.com/the-astrophotographers-guide/pixinsights/narrow-band-combinations-with-pixelmath-hoo/

[jegsav]

Me too. I used PixelMath some time ago when the tutorial links worked and now want to use it again. The UI is NOT intuitive and I've forgotten how e.g. to get data in (and out). Why is there NO PROGRAM ACCESSIBLE DOCUMENTATION (in common with about 60% of modules last time I looked). Good grief - I think I'll program what I want in Java - much quicker!
 

[msmythers]

You might have a look at these links.

http://www.werbeagentur.org/oldwexi/PixInsight/PixInsight.html


https://pixinsight.com/forum/index.php?topic=6332.msg



Mike

[jegsav]

Well, I did what I needed to do in Java.
Why is there this extraordinary reluctance with the PixInsight to do the professional thing and produce complete documentation?  Worse than Microsoft.