- #1

cpeng

- 2

- 0

Eq 1= 5x^2 - 2y^2 + 4x+ 4y -4 +2xy

Eq 2 =x^2 +3x +2y +xy +5

eq 3 = -7x2 +3x -6y +5xy +2

i tried plot3 with 3 matix of x,y,z but i am not satisfied with the result.

please if anyone know how to plot these equations.let me know

thanks in advance