I want to use different symbols instead of Sigma for \sum and the like. I tried


But the symbol is small compared to \sum

Then I tried the relsize package


But then it throws off the baseline

Ideally I want the two to be vertically aligned.

Any help is appreciated.

EDIT: Both answers are great. But both have some scaling problems

Steven's solution is too big in display mode:

$$\sum_{i=1}^n \bigGreek{\Lambda}_{i=1}^n\foo_{i=1}^n \sum_{i=1}^n$$

egreg's solution is too small in inline mode (removed limits for clearer comparison)

Inline: $\sum \bigGreek{\Lambda} \foo \sum$

In practice, I probably will be using a combination of both. Unfortunately I can only accept one answer, and my OP was in display mode.


A variation on \bigmaltese:


  \mathop{% we want it to be an operator

    #2% font size


Here's in text, $\bigLambda_{i=1}^n x_i$, next in display
\sum_{i=1}^n \bigLambda_{i=1}^n x_i

enter image description here


Using my answer at How are big operators defined?, I merely substituted \Lambda instead of \maltese. While the symbols are slightly different vertical heights, one notes the limits are aligned for both the sigma and lambda.


This is inline: \(\sum_{k=1}^6\foo_{i=3}^{k}(f^2(i)f(k)) \)

enter image description here


The answers given assume that a big lambda operator is really what is wanted here. But couldn't the solution in this particular case be just \bigwedge?

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