It seems that Mathematica reserves the capital i,
I, for the imaginary unit. I have the following expression:
expr = a.b + II
For the user, I want to display the above expression with just
I (for readability, it represents the inertia tensor). So I do:
Print[ToString[ReplaceAll[expr, II -> I] // TraditionalForm]]
But I still get the "imaginary unit" and not an actual capital i:
How do I display a capital i? Thanks! To emphasize: this is just to display to the user in a string output, in the actual code I use II...