"Proportional to" symbol with Igor Tex

I'm not sure what your ultimate goal is, but if you just need Greek letters and a "proportional to" character, I would not use Igor TeX. I would use Unicode symbols:

Label left "\\Z12α ∝ β"

I composed that command in the Axis Label tab of theModify Axis dialog. I found all three characters in the Character menu to the left of text composing area.

A view of the character picker

John, I had a similar problem a while ago with insertion of a parallel symbol. There is a perpendicular symbol in the character picker, but no companion parallel symbol. Any chance of adding one?

Thank you, works great

@lscanlonj Great! Glad I could help.

@s.r.chinn In Igor 9, I see that character in the picker. See the attached screen shot. 

Hi John, I should have clarified that I was after a vertical parallel-bar symbol, not slanted or italic. The unicode character exists, but I do not have it in my available fonts. It is meant to illustrate the parallel counter-part to the vertical-upright perpendicular symbol.

If you can find the appropriate Unicode character, you can add it to the character picker. See the button at the bottom of the picker.