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Fractions: x over y.
Scripts: x sub i below, x sup n above.
Big operators: sum from a to b, prod, int.
Roots: sqrt x.
Greek letters by name: alpha, beta, pi, …
Sizing delimiters: left ( … right).
Group with: { ... } . Mind spaces around curly braces.

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Juan Pablo de la Cruz Gutiérrez © 2026