(mathematics) Stretching Unicode big operator

(mathematics) Stretching Unicode big operator

[Sander Maijers]

If I decide to use, for instance, "Σ" instead of "\sum", this operator 
is no longer stretched/scaling regardless of the sub/superscripts 
specified tot it. Is it possible to keep stretching/scaling while using 
Inicode characters for such operators?
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Re: (mathematics) Stretching Unicode big operator

[Hans Hagen]

On 6/22/2013 10:45 PM, Sander Maijers wrote:
> If I decide to use, for instance, "Σ" instead of "\sum", this operator
> is no longer stretched/scaling regardless of the sub/superscripts
> specified tot it. Is it possible to keep stretching/scaling while using
> Inicode characters for such operators?

This is because it's a greek sigma and I'm pretty sure that e.g. Thomas 
would be surprised to see a math symbol showing up in his greek.

You need to use another one:

$$\sum\frac{1}{\frac{1}{\frac{1}{\frac{1}{2}}}}$$

$$∑\frac{1}{\frac{1}{\frac{1}{\frac{1}{2}}}}$$

Hans

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