« previous next »
Pages: [1]

Author Topic: pixelmath help please  (Read 2073 times)

Offline jamesRC

  • PixInsight Addict
  • ***
  • Posts: 102
pixelmath help please
« on: 2017 November 16 11:26:47 »
Hi,

I'm brand new at PixelMath. The following expression:
"Oiii_crescent_int_GB  + 0.6 x Ha_crescent_int_R" (which is an attempt to reduce the effect of the second image to 0.6x its original brightness.)
This gives me a "disassociated subexpression" error. What's this mean, please?

Thank you all. Hope I'm clear enough here! O:)

James
Logged

Offline RickS

  • PTeam Member
  • PixInsight Jedi
  • *****
  • Posts: 1298
Re: pixelmath help please
« Reply #1 on: 2017 November 16 13:00:06 »
The multiplication symbol is "*" not "x".
Logged

Offline jamesRC

  • PixInsight Addict
  • ***
  • Posts: 102
Re: pixelmath help please
« Reply #2 on: 2017 November 16 13:02:40 »
shucks.

Thank you.

James
Logged

Offline RickS

  • PTeam Member
  • PixInsight Jedi
  • *****
  • Posts: 1298
Re: pixelmath help please
« Reply #3 on: 2017 November 16 15:01:22 »
No problem.  It's a very common convention for programming languages but if you're not a coder then it's not so obvious...
Logged
Pages: [1]
« previous next »