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# Tag Info

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Use single dollars and \displaystyle and be sure to place spaces outside the dollars: Text before If I want to write $\displaystyle 2=1+1=2(0.5+0.5)=\sum_{n=1}^40.5=\sum_{n=1}^21$, this is happening but now it looks fine, at least to me, and the paragraph continues neatly. Text after

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If you just want to make the fraction smaller, you can write: \tfrac M N $$\tfrac M N \quad \text{versus} \quad \frac M N$$

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Markov Chains This is a heuristic solution for coding Markov chains in Mathjax using a combination of commutative diagrams, the encircle tool and font sizes. There are a few minor issues with this method, for instance the arrows' ends should be attached closer to their targets. Also, it lacks double-headed diagonal arrows and it is difficult to attach ...

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That's a feature. The two dollar-sign method is supposed to break the stuff between it onto its own line. Is this what you're trying to do? $$2=1+1=2(0.5+0.5)=\sum_{n=1}^40.5=\sum_{n=1}^21\text{this is happening}$$

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