Laws expressed mathematically

[bradmac65]

Does anyone know if there is a way to mathematically express a law for use in a function? I recently discovered that our company doesn't have this option in the package we have. I'm thinking I can create a formula to simulate a law - if only I knew how.

 

[Azrael]

Think that is a standard function, there are two law functions the ordinary one that is based on a curve relation and the other one (think it's labelled (f)og in the same toolbar where design table functin can be found) that is mathematically based

 

[bradmac65]

We don't have any law function or f(og) in the package we use at work - that's why I'm trying to see if there is a way to express that as a formula instead. What I'm trying to use the law for is to create a flexible tube as shown in the following old thread:

http://www.eng-tips.com/viewthread.cfm?qid=191644