1. RE: boolean error?
> -----Original Message-----
> From: Kat [mailto:gertie at PELL.NET]
> This has me puzzled, i see no reason in this:
>
> >From ex.err:
> n = {0}
>
> so why doesn't this line execute?
> if equal(n,"0") or equal(n,0) then
Because they're not equal. Your line is equivalent to:
if equal(n,{48}) or equal(n,0) then
Perhaps change it to:
if equal(n,"0") or equal(n,0) or equal(n,{0}) then
or...
if find(n, { "0", 0, {0} } ) then
Matt Lewis
2. RE: boolean error?
On 5 Aug 2002, at 9:20, Matthew Lewis wrote:
>
> > -----Original Message-----
> > From: Kat [mailto:gertie at PELL.NET]
>
> > This has me puzzled, i see no reason in this:
> >
> > >From ex.err:
> > n = {0}
> >
> > so why doesn't this line execute?
> > if equal(n,"0") or equal(n,0) then
>
> Because they're not equal. Your line is equivalent to:
>
> if equal(n,{48}) or equal(n,0) then
Yes, so? n = {0}, meaning {48}, no?
> Perhaps change it to:
>
> if equal(n,"0") or equal(n,0) or equal(n,{0}) then
>
> or...
>
> if find(n, { "0", 0, {0} } ) then
I did all those, but settled on:
if sequence(n) and (length(n) =1) then
n= n[1] -- convert to atom
end if
if equal(n,0) then
Kat
3. RE: boolean error?
- Posted by rforno at tutopia.com
Aug 05, 2002
----- Original Message -----
From: Kat <gertie at PELL.NET>
Subject: RE: boolean error?
>
> On 5 Aug 2002, at 9:20, Matthew Lewis wrote:
>
> >
> > > -----Original Message-----
> > > From: Kat [mailto:gertie at PELL.NET]
> >
> > > This has me puzzled, i see no reason in this:
> > >
> > > >From ex.err:
> > > n = {0}
> > >
> > > so why doesn't this line execute?
> > > if equal(n,"0") or equal(n,0) then
> >
> > Because they're not equal. Your line is equivalent to:
> >
> > if equal(n,{48}) or equal(n,0) then
>
> Yes, so? n = {0}, meaning {48}, no?
>
No. n = {'0'} means {48}, because '0' is 48, and "0" is also {48}. {0} is,
of course, {0}. {"0"} is {{48}}.
> > Perhaps change it to:
> >
> > if equal(n,"0") or equal(n,0) or equal(n,{0}) then
> >
> > or...
> >
> > if find(n, { "0", 0, {0} } ) then
>
> I did all those, but settled on:
>
> if sequence(n) and (length(n) =1) then
> n= n[1] -- convert to atom
> end if
> if equal(n,0) then
>
> Kat
>
>
>
>
