The largest integer A97 can deal with is 2,147,483,647,
as I understand it from HELP. I would be content to represent
larger integers as strings. For example, "2147483648 " would
suit me fine. I would be interested in converting larger HEX
numbers to decimal integer equivalents. For example, a 16-digit
HEX number is quite a large decimal value and I would be
happy to represent it as a string, as it would suit my purposes
fine. Since the math, however, is not going to be calculated
by Access, it seems an intimidating task to code it. Was wondering,
perhaps, if someone might have already done so.
28  4819 
I believe Access97 had a variant decimal type.
And I believe such a type could handle up to 12 hex characters, even
doing math with same as follows:
Sub test()
Dim VariantDecimal As Variant
VariantDecimal = CDec("&hfffffff fffff")
Debug.Print VariantDecimal
Debug.Print VariantDecimal / 5
Debug.Print Sqr(VariantDeci mal)
End Sub
I also believe that somewhere, somehow, sometime, variant decimals were
changed, allowing larger numbers. And I believe that the VBA variant
decimal type is not identical with JET's decimal data type which
permits maximium values of only 10^28 - 1.
Well that is great news!
281474976710655 Variant Decimal
56294995342131 Above Amount Div by 5
16777216 Square Root of the First Number
Now, if I can come up with an ingenious way to break
down Variant Decimal values larger than &hFFFFFFFF,
I'll be home free. I'll bet someone clever has already
figured out and posted a way to convert numbers up
to 281474976710655 to HEX strings.
On 1 Dec 2005 16:30:06 -0800, "Lyle Fairfield" <ly***********@ aim.com>
wrote: I believe Access97 had a variant decimal type.
And I believe such a type could handle up to 12 hex characters, even
doing math with same as follows:
Sub test()
Dim VariantDecimal As Variant
VariantDecimal = CDec("&hfffffff fffff")
Debug.Print VariantDecimal
Debug.Print VariantDecimal / 5
Debug.Print Sqr(VariantDeci mal)
End Sub
I also believe that somewhere, somehow, sometime, variant decimals were
changed, allowing larger numbers. And I believe that the VBA variant
decimal type is not identical with JET's decimal data type which
permits maximium values of only 10^28 - 1.
MLH wrote: Now, if I can come up with an ingenious way to break
down Variant Decimal values larger than &hFFFFFFFF,
I'll be home free. I'll bet someone clever has already
figured out and posted a way to convert numbers up
to 281474976710655 to HEX strings.
Great, I'm sure you'll find it. I hope you won't forget to post it here
so I can compare it with mine and perhaps pick up a pointer. http://groups.google.co.uk/group/mic...c508264bc18a96
or http://tinyurl.com/9d62n
--
Terry Kreft
"MLH" <CR**@NorthStat e.net> wrote in message
news:ur******** *************** *********@4ax.c om... The largest integer A97 can deal with is 2,147,483,647,
as I understand it from HELP. I would be content to represent
larger integers as strings. For example, "2147483648 " would
suit me fine. I would be interested in converting larger HEX
numbers to decimal integer equivalents. For example, a 16-digit
HEX number is quite a large decimal value and I would be
happy to represent it as a string, as it would suit my purposes
fine. Since the math, however, is not going to be calculated
by Access, it seems an intimidating task to code it. Was wondering,
perhaps, if someone might have already done so.
Whoops, sorry just realised that's the other way round to what you want to
achieve.
--
Terry Kreft
"Terry Kreft" <te*********@mp s.co.uk> wrote in message
news:xG******** ************@ka roo.co.uk... http://groups.google.co.uk/group/mic...c508264bc18a96
or
http://tinyurl.com/9d62n
--
Terry Kreft
"MLH" <CR**@NorthStat e.net> wrote in message
news:ur******** *************** *********@4ax.c om... The largest integer A97 can deal with is 2,147,483,647,
as I understand it from HELP. I would be content to represent
larger integers as strings. For example, "2147483648 " would
suit me fine. I would be interested in converting larger HEX
numbers to decimal integer equivalents. For example, a 16-digit
HEX number is quite a large decimal value and I would be
happy to represent it as a string, as it would suit my purposes
fine. Since the math, however, is not going to be calculated
by Access, it seems an intimidating task to code it. Was wondering,
perhaps, if someone might have already done so.
I'm leaning toward dividing the subject value by the largest HEX
order of magnitude possible, MOD'ing off the remainder and working
with that as a starting point ==> concat'ing the remains of the
massacre once everything's been ripped apart 'n chewed up.
xxxxxxxxxxxxxxx xxxxxxxxxxxxxxx xxxxxx
On 1 Dec 2005 22:22:39 -0800, "Lyle Fairfield" <ly***********@ aim.com>
wrote: MLH wrote: Now, if I can come up with an ingenious way to break
down Variant Decimal values larger than &hFFFFFFFF,
I'll be home free. I'll bet someone clever has already
figured out and posted a way to convert numbers up
to 281474976710655 to HEX strings.
Great, I'm sure you'll find it. I hope you won't forget to post it here
so I can compare it with mine and perhaps pick up a pointer.
Great! show us an example, please.
MLH <CR**@NorthStat e.net> wrote in
news:qv******** *************** *********@4ax.c om: On 1 Dec 2005 16:30:06 -0800, "Lyle Fairfield"
<ly***********@ aim.com> wrote:
I believe Access97 had a variant decimal type.
And I believe such a type could handle up to 12 hex characters,
even doing math with same as follows:
Sub test()
Dim VariantDecimal As Variant
VariantDecimal = CDec("&hfffffff fffff")
Debug.Print VariantDecimal
Debug.Print VariantDecimal / 5
Debug.Print Sqr(VariantDeci mal)
End Sub
I also believe that somewhere, somehow, sometime, variant
decimalswere changed, allowing larger numbers. And I believe that the VBA
variant decimal type is not identical with JET's decimal data
typewhich permits maximium values of only 10^28 - 1.
Well that is great news!
281474976710655 Variant Decimal
56294995342131 Above Amount Div by 5
16777216 Square Root of the First Number
Now, if I can come up with an ingenious way to break
down Variant Decimal values larger than &hFFFFFFFF,
I'll be home free. I'll bet someone clever has already
figured out and posted a way to convert numbers up
to 281474976710655 to HEX strings.
???
Lyle's code operates on #hFFFFFFFFFFFF, which is the number you're
looking for.
I don't know what Lyle is talking about with his decimal veriant.
Surely a Double or a Single could store all the values you needed,
unless I've completely forgotten how to interpret exponential
notation. My Windows calculator tells me that your upper limit,
#hFFFFFFFFFFFF, is 2.8147497671065 5e+14, and the upper limit for
double data type is 1.7976931348623 2e+308, according to the A97
help
file. Now, the base number for your upper limit is bigger, but the
exponent is many orders of magnitude smaller, so it seems quite
clear to me that you should be able to store your numbers
accurately
in a double, a numeric data type.
Unless, of course, I'm terribly confused about how all this works.
If I am, I'm sure someone will correct me.
I'd certainly think it would be *much* easier to store numbers as
numbers than to have to convert them from strings in order to
perform operations on them.
Why would you *not* choose double or Single? What, exactly, would
you be gaining by storing your numbers as strings?
--
David W. Fenton http://www.bway.net/~dfenton
dfenton at bway dot net http://www.bway.net/~dfassoc
David W. Fenton <dX********@bwa y.net.invalid> wrote: MLH <CR**@NorthStat e.net> wrote in
news:qv******** *************** *********@4ax.c om:
On 1 Dec 2005 16:30:06 -0800, "Lyle Fairfield"
<ly***********@ aim.com> wrote: I also believe that somewhere, somehow, sometime, variant decimals
were changed, allowing larger numbers. And I believe that the VBA
variant decimal type is not identical with JET's decimal data type
which permits maximium values of only 10^28 - 1.
Well that is great news!
281474976710655 Variant Decimal
56294995342131 Above Amount Div by 5
16777216 Square Root of the First Number
Now, if I can come up with an ingenious way to break
down Variant Decimal values larger than &hFFFFFFFF,
I'll be home free. I'll bet someone clever has already
figured out and posted a way to convert numbers up
to 281474976710655 to HEX strings.
???
Lyle's code operates on #hFFFFFFFFFFFF, which is the number you're
looking for.
I don't know what Lyle is talking about with his decimal veriant.
Why not upto #hFFFFFFFFFFFFF FFFFFFFFFFF
=79228162514264 337593543950335 , the largest variant decimal?
--
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