# matrix equationsWatch

#1
I have a matrix

from which it states "we can read the equations z=4x-2y, w=-0.5x+0.5y for vectors (x,y,z,w)".

i can see that there is a 4, -2, -0.5 etc in the matrix, but i see it as x+4z=0.5w and y+0.5w=2z. how have they done it in their order?
0
8 years ago
#2
(Original post by furryvision)
I have a matrix

from which it states "we can read the equations z=4x-2y, w=-0.5x+0.5y for vectors (x,y,z,w)".

i can see that there is a 4, -2, -0.5 etc in the matrix, but i see it as x+4z=0.5w and y+0.5w=2z. how have they done it in their order?
Just by looking at it. The columns give the vectors (x,y,z,w) whilst row 1 gives x and row 2 gives y.
0
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