@vv thanks, any way what is 6?

@Carl Love Thanks for your attention, Yes actually the syntax is very simple, I have explored, the result maple and my manual solution have similar result.

@Preben Alsholm This a great! thanks....Any way, do you know the alternative plot/equation instead of mine about what I stated in my queries above, in case if I want to make them in 3dimension based on 3 equations. Many thanks agin for your help my friend.

@tomleslie thanks for your reply, actually I want to perform similar things like wolfarm(mathematica) done please see this figure http://demonstrations.wolfram.com/VirtualFlowersWithCrispatePetals/HTMLImages/index.en/popup_1.jpg . The final goal is to construct that 3d figure (as mentioned in the link) by combining the three basic plots. Do you know any suggestion in how i can do similar like that using my function?