Text Formatting ⇒ Double superscript error

[sachinrajsharma]

Hi All,
I am facing an error of double superscript while running the following in tex.

$\{ \frac{\sum^{100}_{i=0}^kC_i ^{m-k}C_{100-i} \frac{k-i}{M-100}}{^MC_{100}} \}$


Please help thanks

Sachin

[esdd]

The double superscript is in

Code: Select all

\sum^{100}_{i=0}^k ...

Maybe you can use

Code: Select all

\usepackage{mathtools}
$\sum^{100}_{i=0}\prescript{k}{}{C}_i$

Best regards
Elke