Re: Applesoft Basic question

[SteakMan <steakman@wwa.com>]

On Thu, 12 Jan 1995, Paul Guertin wrote:

> In article <3f2ct3$77k@sashimi.wwa.com> you write:
> 
> [Applesoft floating-point problem]
> 
> You found a bug in Applesoft. That particular bug has been known
> for years, and to my knowledge noone has released a patch for it.
> A simple way to work around it is to separate every operation:
> instead of B = INT(A*100), write B=A*100:B=INT(B). That should
> work in most (all?) cases.
> 
Not mine unfortunately.....

> Bugs like this are very common in microcomputer BASICs. They occur
> because the computer uses a binary representation for storing
> numbers, and terminating fractions like 1/10 = 0.1 in decimal
> become repeating fractions in binary, leading to round-off
> errors.
> 
Thank you for the informative reply... I'm afraid that I already knew 
that.  I suppose that I should have asked if anyone knew a good way 
around the problem.  As it stands, I'm looking at a series of IF THEN 
conditions.

I should just invest in a C compiler  :(

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