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213 - A4.7 - Variable in Matrix
1692 days ago by Professor213
var('b') A = matrix([[-3,-2,-2],[-7,-2,-4],[-1,5+b,0]]) show(A) show(A.echelon_form())
var('b,c') A = matrix([[-3,-2,-2,1],[-7,-2,-4,1],[-1,5+b,0,1]]) show(A) show(A.echelon_form())
var('a,b,c,h') A = matrix([[1,-5,1],[-1,7,1],[3,8,h]]) show(A) show(A.echelon_form())
var('a,b,c,h') A = matrix([[1,-5,1,a],[-1,7,1,b],[3,8,h,c]]) show(A) show(A.echelon_form())
# change to octave mode before evaluating this cell A = [1 -5 1; -1 7 8; 3 8 6] rref(A)
A = 1 -5 1 -1 7 8 3 8 6 ans = 1 0 0 0 1 0 0 0 1
A = 1 -5 1 -1 7 8 3 8 6 ans = 1 0 0 0 1 0 0 0 1