# SQRT The SQRT I/O calculates the square root of each sample of the source's data.

The typical application of the SQRT I/O is to use it as part of larger, more complex mathematical operations.

Hint: The SQRT-I/O can be used to calculate RMS values. Perform the following steps:
• Create a Multiply/Divide
• Create a Low pass filter
• Create a SQRT
• Drag your source onto the Multiply/Divide twice to calculate squared values of the source's data.
• Drag the Multiply/Divide onto the Low pass filter to calculate a running mean of the squares.
• Drag the Low pass filter onto the SQRT to get the RMS values.
• Optionally create a resampler and connect the SQRT to it to reduce the sample frequency.

## Common properties and actions

To control the behavior of the SQRT I/O, several properties and actions are available. These can be accessed through a popup menu which is shown when the I/O is right clicked. For more information, see common properties and actions.

### Related information

#### Gain/Offset

The Gain/Offset I/O multiplies a signal with a constant gain factor and adds a constant offset.

#### Add/Subtract

The Add/Subtract I/O adds or subtracts data of two or more sources.

#### Multiply/Divide

The Multiply/Divide I/O multiplies or divides data of two ore more sources.

#### ABS

The ABS I/O takes the absolute value of each sample of the source's data.

#### Differentiate

The Differentiate I/O differentiates the source's data.

#### Integrate

The Integrate I/O integrates its source's data.

#### Logarithm

The Logarithm I/O calculates the logarithm of the source's data.

#### Low pass filter

The Low pass filter I/O filters the source's data using a first order low pass filter.

#### Resampler

The Resampler I/O resamples the source's data to decrease or increase the sample frequency (and record length with the same ratio) of a signal.