I have a user interface problem that I hope isn't only solved by adding yet another option for authors to understand.
Student types a mathematical expression. We want to allow implicit multiplication, so `xy` is interpreted as `x*y`.
What to do about `pi`? Is it `p*i` or `π`?
In reply to @christianp
My guess is that most of the time, you'd expect it to be interpreted as π. But it's completely reasonable that you might be doing something with complex numbers, and `p*i` is really what you meant.
I suppose rendering π would at least give you a hint to add the * symbol
In reply to @christianp
For reference, @Desmos does implicit multiplication for most letter pairs, but replaces 'pi' with the symbol π. Pressing backspace just deletes the entire symbol. You have to type 'p*i' to get the product of p and i.
In reply to @christianp
@Desmos @geogebra also does implicit multiplication most of the time, and 'pi' is interpreted as 3.14... but it isn't replaced with the symbol.