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SiestaMadokaist/LE-1-matrix.rb

Last active January 2, 2017 13:40
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LE-1-matrix.rb
# x - 2.y + z = 9
# 2.x - y = 4
# y + z = 12
[x] [1, -2, 1] [9]
[y] * [2, -1, 0] = [4]
[z] [0, 1, 1] [12]
# if we want to find out the x, y, and z, we can just
[x] [9]
[y] = M.inverse * [4]
[z] [12]
# where M is the matrix (3 x 3) defined above.
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