Name: Line_2 F(): z - 4.1*x*exp(-x^2-y^2) [x]: -2 , 2 [y]: -2 , 2 [z]: -1.8 , 1.8 Cnd: z*(z-.25)*(z+.25)*(z-.5)*(z+.5)*(z-.75)*(z+.75)*(z-1)*(z+1) *(z-1.5)* (z+1.5) * (z-1.25) * (z+1.25) * (z-1.75)*(z+1.75) * y*(y-.25)*(y+.25)*(y-.5)*(y+.5)*(y-.75)*(y+.75)*(y-1)*(y+1) *(y-1.5)* (y+1.5) * (y-1.25) * (y+1.25) * (y-1.75)*(y+1.75)>0 ;