sqrtm

Scilab Function
Last update : 25/04/2007

sqrtm - matrix square root

### Calling Sequence

  `y=sqrtm(x)`

### Parameters

- `x` : real or complex square matrix

### Description

`y=sqrt(x)` is the matrix square root of the `x` x matrix (`x=y^2` ) Result may not be accurate if `x` is not symmetric.

### Examples

    x=[0 1;2 4]
    w=sqrtm(x);
    norm(w*w-x)
    x(1,2)=%i;
    w=sqrtm(x);norm(w*w-x,1)

### See Also

`expm` , `sqroot` ,