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The rank of a matrix is the number of independent rows and / or columns of a matrix. We will soon define what we mean by the word independent. ... <看更多>

You can apply elementary row operations and elementary column operations to bring a matrix A to a matrix that is in both row reduced echelon form and column ... ... <看更多>

An alternative to @EDi's Answer is to copy a and then assign the output of rank(a) directly into the elements of the copy of a : ... <看更多>