calculating miters and bevels?

[Warrior]

Can anyone help me with a good method of calculating the miters and bevels for a 3 way miter on boxed beams on a vaulted ceiling? I have beams on the hips meeting a beam on the ridge. My math skills could be improved and I don't think my construction master calc or bosch angle finder will help.
thanks,

Eiji

 

[Tezzer]

Eiji ;D This blokes an Aussie and has a way to calculate anything and everything  ;D
http://www.blocklayer.com

 

[Ted Miller]

Tezzer, Awesome link, thank you sir, the metric table is perfect...

 

[Warrior]

Thanks Tezzer