Re: SQR Math Oddity...1=1...or does it?

[Arjan Hoornstra <ahoor@YAHOO.COM>]

Scott,

This is a common problem, see also the 'Numeric vars' posts in this
maillinglist from a few days ago... and there are several other
examples in the history.

Arjan


--- "Marcellus, Scott" <SMarcellus@AMILINK.COM> wrote:
> I have tried the following snippet of code in SQR (6.1.4) and I am a
> little
> baffled at the results when it evaluates that the values are not
> equal:
> Oddly enough, converting the number with the to_char function
> properly
> evaluates these statements correctly. I have tried this on several
> instances
> of SQR that we have and found the results strange. Does anyone have
> any
> ideas what may cause this? Can anyone else verify if this error
> occurs? Does
> anyone have any ideas on how to resolve it?
>
> Thanks,
>
> Scott Marcellus
>
> !Begin Code Snippet
>
> let #x = 231.00
> let #y = 16.17
> let #z = 247.17
> if to_char(#x + #y) = to_char(#z)
>     print 'This is correct' (+1,20,0)
> else
>     print 'This is NOT correct' (+1,20,0)
> end-if
>
> if #x + #y = #z
>     print 'This is correct' (+1,20,0)
> else
>     print 'This is NOT correct' (+1,20,0)
> end-if
>
> Let #y = 16.16
> Let #z = 247.16
> if #x + #y = #z
>     print 'This is correct' (+1,20,0)
> else
>     print 'This is NOT correct' (+1,20,0)
> end-if
>
> let #x = 427667.1
> let #y = -34.83
> let #z = 427632.27
> if #x + #y = #z
>     print 'This is correct' (+1,20,0)
> else
>     print 'This is NOT correct' (+1,20,0)
> let #tmpxy = #x + #y
>     print #tmpxy                (+1,20,0)
>     print #z                    (+1,20,0)
>
> end-if
>
> !End Code Snippet


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