Specify Columns of Minors Using Sage
I'm wondering if there's a built-in function of sage to specify columns of matrix when I compute sage. In other words, I need it to give me the index of columns consisting of my minors. i used built-in function to compute the minor, but I couldn't find how to specify the minors.
Could you please expand? What is your input, what are you evaluating (I mean: what commands are you using), what is your output, and what is your desired output?