I have a matrix of size(n x n). It contains many rows and column which is filled with zero. I want to reduce this matrix in such a way that all rows and columns which has zero values is deleted. How to write a code for this in Modelica? Also a general algorithm for the code will be fine if anyone is not familiar with modelica software.
I think you are looking at the wrong resource to do that. It will be much easier to perform the task in MATLAB.
see here:
https://www.mathworks.com/matlabcentral/answers/40018-delete-zeros-rows-and-columns
I am not sure how the matrix is generated, but if you are trying to solve a set of linear/nonlinear equations then since Modelica is a declarative language you can directly type the equations and solve them without worrying about the matrix generated. Such matrices are unlikely to be created in Modelica compilation.
Provide more info about how the matrix is created and why would you like to do that in Modelica ?
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