Sqrt

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

Mathematical function (see Section A.3.10).

can be entered using 2z or \(\@z\).

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

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

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

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

In StandardForm, Sqrt[z] is printed as .

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

See The Mathematica Book: Section 1.1.3.

See also: Power, PowerExpand, SqrtBox.

Further Examples