frac{12}

[primayanuaristya]

Why if math field \frac{1}{2} return \frac12?
If \sqrt{\frac{1}{2}} return \sqrt{\frac{12}}

[primayanuaristya]

Only single numerator or denumerator

[arnog]

In LaTeX, some commands can have "single-token arguments", including \frac and \sqrt. This means that \frac12 is identical to \frac{1}{2} and \sqrt2 is identical to \sqrt{2}. Wether to use single-token variants or not is a style preference. The MathLive serializer uses the shorthand version when the numerator and denominator are both single digits.

[primayanuaristya]

In LaTeX, some commands can have "single-token arguments", including \frac and \sqrt. This means that \frac12 is identical to \frac{1}{2} and \sqrt2 is identical to \sqrt{2}. Wether to use single-token variants or not is a style preference. The MathLive serializer uses the shorthand version when the numerator and denominator are both single digits.

how make single with {} for example \sqrt{4} not \sqrt4 withouth regex?