\sqrt

The `\sqrt` command produces the square root (radical) symbol with the
argument as radicand. The
optional argument, root, determines what root to produce, i.e. the
cube root of x+y would be typed as `$\sqrt[3]{x+y}$`.

The radical sign is variable size, that is, it is made larger if the radicand is, for example, a built-up fraction.

See also: Math Formulas, Math Miscellany.

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Revised: Sheldon Green, 31 May 1995.