what matrix.plot meanings?
when I run bolow,a graph appears,how to understand it?
matrix([[3,-1,1],[2,0,1],[1,-1,2]]).plot()
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2 Answers
The lighter shades correspond to the larger entries of the matrix. In your example the black square are in positions (0, 1) and (2, 1), where the entries are -1, and the white square is in position (0, 0), where the entry is 3, which is the largest entry in the matrix. Typing
sage: M = matrix([[3,-1,1],[2,0,1],[1,-1,2]])
sage: M.plot?will give more information.
thank you ver much!
I have understand by below sage: M = matrix([[20,10,2,-1,1,-2,-10],[20,10,2,-1,1,-2,-10],[20,10,2,-1,1,-2,-10],[20,10,2,-1,1,-2,-10]]) sage: M.plot()
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Asked: 10 years ago
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Last updated: Oct 28 '14
