Missing constants

[Former user]

I was going through your list of constants & could not find the following:

Pi Eulers constant Golden Ratio

Am Iooking in the wrong place?

[Helder Correia]

They are all available in the latest development version. To be honest, I don't remember whether that was also the case for your 0.12 release, but I do believe it should be there (@polwel @Teyut help?). At least "pi" is a built-in value. You can just type it in the editor.

[Tey']

Euler's constant (γ=0.577215664901532...) is missing from the constants book AFAIK. Dunno if it's important or not.

Only pi can be used in expressions as a word, but you can assign the other constants to user variables.

[Hernan Gonzalez]

I was surprised that Euler's constant (γ=0.577215664901532...) is not included.