Using solve() to find inverse of a matrix containing real and complex numbers

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Hello @mohitarora,

I keep asking a reprex from you. This is not a hobby of mine but necessary to be able to see what is YOUR problem.

If you had tried to deliver a reprex you would have seen that the data.frame that you included is not a numeric matrix. The code and the data.frame just don't match:

  • the df data.frame you did not define
  • the df[1:"number_of_cols"] line would never execute
  • the mat1 matrix is not defined

A suggestion: remove some quotes in the specification of df1.
I think I have contributed what I could.

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