Combining a slider and superscript

[nemean]

I would like to animate a number going from 10^1 to 10^10, by having the exponent count from 1 to 10.

I have a slider going from 1 to 10 and then set the source text with an expression.

But then I can't set this exponent to be in superscript.

How do I do this?

[Mylenium]

You don't. You simply split up the layers and animate them separately. Superscript is a text decoration to begin with and most fonts only offer hard-coded glyphs for power of 2 and 3, anyway, so beginning with 4 any automatic formatting would fail in most cases.

Mylenium

[Rick Gerard]

 easiest way - two layers

[mpbmke_PKA]

For anyone coming across this now 4 years later and beyond, we finally have access to style in text expressions:

Edit text styles and text properties using expression controls.