Introducing an equation in Cosmosworks

[holyo]

Hello, I have to make a simulation in Cosmosworks. I introduce a force with an equation, the problem is:

- solidworks only let you equation like this: f = a*x+ b*y+ c*x^2+ d*y^2

And I my equation has: x^5 + x^6 + x^7

What can I do?

Thank you everybody, and sorry for my english.