Creating new matrix from existing matrix

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Nihal Seegobin
Nihal Seegobin 2019-4-15
回答： madhan ravi 2019-4-15
I need to create a new matrix that is one size smaller than the existing matrix. i have a 4 x 4 matrix and i want to extract a 3 x 3 matrix from it that starts at (2,2) onwards

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madhan ravi
madhan ravi 2019-4-15
matrix(2:end,2:end)

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