"Bald Eagle" <cre### [at] netscapenet> wrote:
> Cousin Ricky <ric### [at] yahoocom> wrote:
>
> > This isn't so much a bug as a floating point limitation.  Pi/2 has no
> > exact representation in binary, so you never get exactly 90 degrees.

And following along with that:   how do we then calculate cos (pi/2) and get
exactly 0, or sin (pi/2) and get 1?

Can we ever get exactly pi/2?  Pi?  3pi/2?  2pi?

Also when I was testing at theta=0, I was getting Inf for csc(Theta).
It just seems to me that basic unit circle functions ought to be implemented
well enough to handle the complementary situation at Theta=pi/2.

I don't have access to the parser for another 8h, so perhaps someone can run a
few loops to spit out values, or investigate the cylinder rendering issue.

- BW

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