# rcond

Inverse condition number.

## Syntax

* res = rcond(x)

## Input argument

* x - a numeric value: scalar or square matrix (double or single)

## Output argument

* res - a numeric value: a scalar.

## Description

**rcond(x)** computes the reciprocal of the condition of x in the 1-norm.

## Example

```matlab
X = rand(10, 10);
r = rcond(X);
```

## See also

[inv](inv), [cond](cond).

## History

| Version | Description     |
| ------- | --------------- |
| 1.0.0   | initial version |

## Author

Allan CORNET
