x, y, z = var('x, y, z')
solve([5*x-3*y+2*z==10,-3*x+8*y+4*z==20,2*x+4*y-9*y==9],x,y,z)

Strang-5.1.1-1 (last edited 2010-12-18 08:37:38 by shankar)