Topic: Insert a Label and a computed value

I'd like to know how to post a label on the graph with a value computed from a custom function:

E.g. xf: (value of xf here)
       a : (value of constant here)

Re: Insert a Label and a computed value

Just place what you want calculated in brackets after a %.
For example if you have in custom functions:
xf(x)=2x^2
a=5

You can create a label with this:
xf(5)=%(xf(5))
a=%(a)