sqrtm

matrix square root

Calling Sequence

y=sqrtm(x)

Arguments

:x real or complex square matrix :

Description

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.

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 square matrix exponential
  • sqroot W*W’ hermitian factorization

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