Skip to content

The √( Command

Command Summary Command Syntax Calculator Compatibility Token Size
Take the square root of a number. √(input) TI-83/84/+/SE 1 byte

Press 2nd √ to paste the √( command.

The √( Command

Takes the square root of a positive or negative number. It works exactly the same as 2×√ or ^(1/2) but is smaller and uses an ending parenthesis. If used on a list, it will return a list with the square root of each element.

√(4)
        2
√(2)
        1.414213562

√({1,-1})
        {1 i}

This may return a complex number or throw ERR:NONREAL ANS (depending on mode settings) if taking the square root of a negative number.

Optimization

Never raise something to the one-half power explicitly; use this command instead.

:X^(1/2)→X
can be
:√(X→X

Error Conditions

Authors: KG