Hello, I am somewhat new to Maxima. I am trying to solve this simple
system of linear equations:
3x + 8y = 5
4x + 11y = 7
I put them into a matrix and tried to solve:
(%i19) matrix([3,8],[4,11]) . matrix([x],[y]) = matrix([5],[7]);
[ 8 y + 3 x ] [ 5 ]
(%o19) [ ] = [ ]
[ 11 y + 4 x ] [ 7 ]
(%i20) solve(%,[x,y]);
(%o20) []
This somewhat disappointed me, because when I did:
(%i18) solve([3*x + 8*y = 5, 4*x + 11*y = 7],[x,y]);
(%o18) [[x = - 1, y = 1]]
it seemed to work fine. Am I doing something wrong? Why doesn't Maxima
have an answer for the equation involving matrices?