Sqrt

Usage

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

Notes

• Mathematical function (see Section A.3.10).

•

can be entered using

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].

• New in Version 1; modified in 3.