>"** Sounds like a bit of a jerk too, tau meaning " 2pi " is NOT accepted in   
   math and likely never will be. "   
      
   No no no, he is not the one who said it was 2 Pi. But he somehow intended to   
   use it for the pulleys, but I am not sure for what.    
      
   >"Giving double the famous ratio a new name ( one already used for other jobs   
   mind you ) and dropping the centuries old one is ABSURD. "   
      
   Radius is used in geometric formulae other than figuring circumference. It is   
   used in the calculation of sin/cosine and a bunch of other things. I was   
   reading up on it but gave it up because trig tables are a dime a dozen. Like   
   the impedance nomograph    
   someone posted. I saved it and haven't done the 2 pi F C thing for some time   
   now.    
      
   It is easy enough to write 3.1416, as near as I calculated years ago IIRC was   
   3.14159265135 and I am not sure about the last digit. I think 5 was a guess,   
   but that is pretty accurate. (if it is that is)   
      
   --- SoupGate-Win32 v1.05   
    * Origin: you cannot sedate... all the things you hate (1:229/2)