how to create 4x4 inverse matrix in simulink?

how to create 4x4 inverse matrix in simulink?

Answer 1

[Alexander Scholz]

You don't need an extra Toolbox for that. Just use Simulink's "Divide"-Block from "Math Operations" and set it to Matrix-Mode.

You get 2 Imputs:

• The first one needs to get an identity matrix as the input, with correct dimensions (e. g. Constant Block with "eye(4)")
• The second one is the Matrix you would like to invert

Answer 2

[Teja Muppirala]

DSP System Toolbox (Signal Processing Blockset if you're not using the latest version R2011a) -> Math Functions -> Matrices and Linear Alegbra -> Matrix Inverses

http://www.mathworks.com/help/toolbox/dsp/ref/luinverse.html

Answer 3

[Mohammad]

You can also use : simulink -> user defined functions -> Embedded matlab code

Answer 4

[mohammad]

Use the Divide block of Math Operations and set it to Matrix mode. This block has two inputs: the first input must be an identity matrix of the correct dimensions (for example, a Constant block with the value of eye(4)), and the second input is the matrix whose inverse you want to obtain.

The output of this block will be the inverse of the second input matrix. You can use this output to calculate the rest of your equations.