[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Re: My suggestions to the R6RS committee about numerics

"Chongkai Zhu" <mathematica@xxxxxxxxx> writes:

> What if we know (exactly) a number is an imaginary number, but only
> know ineaxtly it's magnitude?  "0+1.0i" seems nature. 

Yes, but Scheme doesn't provide this.  Scheme's numeric system doesn't
allow for "partial exactness".  It's not special for complex numbers;
the same could be true for rationals: what if the numerator is known
exactly, and the denominator inexactly?