I take it the reason the \sum operator gives different "vertical" formats in the fractions than outside is to save space or something?

That is

vs

-Dan

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- Jul 10th 2013, 04:43 PMtopsquark\sum + fractions
I take it the reason the \sum operator gives different "vertical" formats in the fractions than outside is to save space or something?

That is

vs

-Dan - Jul 10th 2013, 06:18 PMMarkFLRe: \sum + fractions
Hey Dan,

I recently learned (at MHB) to use the \limits command to force the limits of sums and products to display where I want. The code:

r = \sqrt{1 - \frac{ \sum\limits_{i = 1}^n ( y_i - yf_i )^2 }{ \sum\limits_{i = 1}^n (y_i - \bar{y} )^2 }}

produces: