48/50 Linear System Solver

[Gilles]

By the way, in exact mode with the 50G :

Code:


[
 'x - 5*y + 4*z = -3'
 '2*x - 7*y + 3*z = -2'
 '-2*x + y + 7*z =-1'
]

['x' 'y' 'z']

SOLVE

returns

{}

I sometimes used SOLVE instead of LINSOLVE. As far I know It's not documented, but works in most cases even with things like :

[
'x^2- 5*y - 4*z = 3'
'2*x - 7*y + 3*z = -2'
'-2*x + y + 7*z =-1'
]

['x' 'y' 'z']

SOLVE

{ [ 'x=-((-37+2*√911)/26)' 'y=-((-513+20*√911)/676)' 'z=-((-105+12*√911)/676)' ] [ 'x=(37+2*√911)/26' 'y=(513+20*√911)/676' 'z=(105+12*√911)/676' ] }