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Documentation / Mathematica / Built-in Functions / Mathematical Functions / Elementary Functions /

Sqrt

FilledSmallSquare Sqrt[z] or gives the square root of z.

FilledSmallSquare Mathematical function (see Section A.3.10).

FilledSmallSquare can be entered using ControlKeyLeftModified2RightModifiedz ControlKeyLeftModifiedRightModified or \(\@z\).

FilledSmallSquare Sqrt[z] is converted to z^(1/2).

FilledSmallSquare Sqrt[z^2] is not automatically converted to z.

FilledSmallSquare Sqrt[a b] is not automatically converted to Sqrt[a] Sqrt[b].

FilledSmallSquare These conversions can be done using PowerExpand, but will typically be correct only for positive real arguments.

FilledSmallSquare In StandardForm, Sqrt[z] is printed as .

FilledSmallSquare z can also be used for input. The character is entered as AliasIndicatorsqrtAliasIndicator or \[Sqrt].

FilledSmallSquare See Section 1.1.3.

FilledSmallSquare See also: Power, PowerExpand, SqrtBox.

FilledSmallSquare New in Version 1; modified in 3.

Further Examples