; In DPGraph's bifurcation diagrams, a is the same as x, so ; there is no need to list the parameter. graph3d.box := true graph3d.mesh := true graph3d.view := top graph3d.perspective := false graph3d.resolution := 125 graph3d.color := byheight graph3d.background := white graph3d.minimumx := 2.5 graph3d.maximumx := 4 graph3d.minimumy := 0 graph3d.maximumy := 1 graph3d.minimumz := 0 graph3d.maximumz := .01 ; The command to generate the graph ; must be the last line in the file. graph3d( (y=x^2*y*(1-y)*(1-x*y*(1-y)),y=x^3*y*(1-y)*(1-x*y*(1-y))*(1-x^2*y*(1-y)*(1-x*y*(1-y))),x=a,y=b) )