# SQRTDAX Function (Math and Trig)

Returns the square root of a number.

## Syntax

SQRT ( <Number> )
Parameter Attributes Description
Number

The number for which you want the square root.

## Return values

Scalar A single decimal value.

Square root of Number.

## Remarks

If the number is negative, the SQRT function returns an error.

» 1 related function

## Examples

```--  SQRT computes the square root of a number
--  POWER raises the number to the required power
DEFINE
VAR Vals = GENERATESERIES ( 1, 25, 3 )
EVALUATE
Vals,
"SQRT",        SQRT   ( [Value] ),
"POWER (0.5)", POWER  ( [Value], 0.5 ),
"POWER (4)",   POWER  ( [Value],   4 ),
"POWER  -1",   POWER  ( [Value],  -1 )
)

```
Value SQRT POWER (0.5) POWER (4) POWER -1
1 1.00 1.00 1 1.00
4 2.00 2.00 256 0.25
7 2.65 2.65 2,401 0.14
10 3.16 3.16 10,000 0.10
13 3.61 3.61 28,561 0.08
16 4.00 4.00 65,536 0.06
19 4.36 4.36 130,321 0.05
22 4.69 4.69 234,256 0.05
25 5.00 5.00 390,625 0.04

## Related functions

Other related functions are:

Last update: Jun 13, 2024     » Show contributors

Contributors: Alberto Ferrari, Marco Russo

Microsoft documentation: https://docs.microsoft.com/en-us/dax/sqrt-function-dax

# Context Transition

This function performs a Context Transition if called in a Row Context. Click to read more.

# Row Context

This expression is executed in a Row Context. Click to read more.

# Not recommended

The use of this function is not recommended. See Remarks and Related functions for alternatives.

# Not recommended

The use of this parameter is not recommended.

# Deprecated

This function is deprecated. Jump to the Alternatives section to see the function to use.

# Volatile

A volatile function may return a different result every time you call it, even if you provide the same arguments. Click to read more.

# Deprecated

This parameter is deprecated and its use is not recommended.

# DirectQuery compatibility

Limitations are placed on DAX expressions allowed in measures and calculated columns.
The state below shows the DirectQuery compatibility of the DAX function.

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