sqrtm¶

matrix square root

Calling Sequence¶

y=sqrtm(x)

:x real or complex square matrix :

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

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