[TR] length of string - long

[auprichard at comcast.net]

Let us say there were only ever 2 models of tr made:  the TR2 and the TR3
Joe and Bob both have two TRs
Joe says, "my first car was a TR3"
Bob says, "one of my cars is a TR3"

Which is more likely to have two TR3s ?

Andrew

-------------- Original message -------------- 
From: Dave1massey at cs.com 

> Actually, Andrew had it right, too. 
> 
> You wrote: c +3 = (pi * d) +3 
> 
> He wrote circumference + 3 = pi * d + 3 
> 
> These are equivalent but yours is explicit whereas his is implicit and 
> dependent on the rules of precedence. When evaluating his equation you perform 
> the 
> multiplication before the addition which is the same as what you spelled out 
> with your parentheses. To avoid confusion your representation is preferred but 
> either is correct. 
> 
> And his answer 3/pi is nearly equal to your one foot result. More accurate, 
> in fact, but either is close enough for our purposes. 
> 
> Dave 
> 
> In a message dated 11/20/2007 10:50:34 AM Central Standard Time, 
> cfmtr3a at verizon.net writes: 
> > Andrew - 
> > your formula is wrong: 
> > c= circumference 
> > 
> > c= pi * d is correct 
> > 
> > c +3 = (pi * d) +3 
> > 
> > however your answer is correct - the diameter would increase by 
> > approximately 1 ft. 
> > your formula would have increased the diameter by 3ft. 
> > 
> > Carl 
> > 
> > 
> > 
> > ----- Original Message ----- 
> > From: "Andrew Uprichard" 
> > To: ; "'Kent Shrack'" 
> > ; 
> > Sent: Tuesday, November 20, 2007 6:18 AM 
> > Subject: Re: [TR] length of string - long 
> > 
> > 
> > >The distance is 3/(2*pi) in both cases. 
> > > 
> > >circumference = pi * d 
> > > 
> > >circumference + 3 = pi * d + 3 
> > > = pi * (d + 3/pi) 
> > > 
> > >The diameter increases by 3/pi regardless of the starting diameter. 
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