Fuente TeX:

T(x,y,z)=(x-y)T(1,0,0)+(y-z)T(1,1,0)+zT(1,1,1)= (x-y)(2,1,0)+(y-z)(1,1,0)+z(0,0,1)=(2x-3y+z,x+y-2z,3y-2z)