Good day!
Does anybody know how to define double Greek letters in the text? There is an implementation using \usepackage{mathbbol}, but this gives an "ugly" variant of writing. :-)
I wish that the result would be closer to the following.
Or is it the same as mtpro2. For myself I use the ConcreteMath font style. Naturally, it also requires a double characterization of the \Gamma \Delta and \Lambda.
