iMechanica - How do find Inverse to Rectangular Matrix? - Comments

as other friend

gholamreza — Mon, 16 Nov 2009 15:11:34 -0500

as other friend mentioned...simply by using (svd).try it with matlab.

svd([your matrix])

Re: How do find Inverse to Rectangular Matrix?

Andrej Puksic — Sat, 14 Nov 2009 16:11:03 -0500

Singular value decomposition (SVD) might also be helpful. You can look it up in "Numerical recipes".

Re: How do find Inverse to Rectangular Matrix?

Alejandro A. Ortiz — Sat, 14 Nov 2009 12:37:47 -0500

An inverse of a rectangular matrix is still viable. Search for Moore-Penrose inverse, Generalized inverse or Pseudoinverse. I think the latter is used in Matlab.

LU decompostion

T.ZENG — Sat, 14 Nov 2009 10:33:37 -0500

LU decompostion may be an efficient numerical method, you can find its algorithm in "numercial recipes

Inverse of a Rectangular matrix

Thiyagarajan Dev — Sat, 14 Nov 2009 03:17:50 -0500

Requirements to have an Inverse

The matrix must be square (same number of rows and columns).
The determinant of the matrix must not be zero .
This is instead of the real number not being zero to have an inverse, the determinant must not
be zero to have an inverse.

A matrix that does not
have an inverse is called singular. A Rectangular matrixis a singular matrix which means it does not have an inverse.

Hope I have answered you.

Cheers,

Thiyagarajan Dev.

Muthu Kumar M

Muthukumar M — Sat, 14 Nov 2009 00:53:05 -0500

Muthu Kumar M

How do find Inverse to Rectangular Matrix?

Muthukumar M — Sat, 14 Nov 2009 00:50:38 -0500

Dear All,

How do find the inverse of the rectangular matrix.