er....this is strange

solvalou

macrumors newbie
Original poster
Aug 23, 2002
19
0
Maybe its only me, but I was doing some homework (college, not school) today. At one point I had to multiply two numbers, one of which was 72.96.

I used the calculator in Jaguar, with the paper tape on.

I enter 72.96 then hit multiply, and before I even enter another number, I get 72.9599999999999 on the paper tape. I've redone it a bunch of times and the result is always the same. This is crazy!!!!

Can someone else do the same? I need to know if I have a very odd bug, or if this is common......


Aaaaargh!!! It does the same for 82.96 and 92.96!!!!!!!
 

dricci

macrumors 6502a
Dec 15, 2001
537
0
I think this has something to do with the Caluclator using the POSIX method of calculations instead of "our" way... I'm not sure if Apple plans on "fixing" it or not.. but I'd say for decimal calculations, use a different calculator...
 

uhlawboi80

macrumors 6502
Sep 8, 2002
350
0
houston
just for ****s and giggles i tried it...and, it works fine on my computer. not sure, but i DID update to 10.2.1.....maybe they fixed it?
 

solvalou

macrumors newbie
Original poster
Aug 23, 2002
19
0
Hmmmmmm.....

seems strange.

what does FOOF mean?

Is it uncomplimentary?
 

solvalou

macrumors newbie
Original poster
Aug 23, 2002
19
0
Yeah, that's what I thought of too - but it has to be a bug in the calc right - or something deeper?

Just thought it was odd.
 

Choppaface

macrumors 65816
Jan 22, 2002
1,187
0
SFBA
is it a calc bug or just the computer? are those like 'binary unfriendly' numbers or something? :confused:

but ya use a graphing calculator...beats the number pad on the keyboard any day :D
 

scem0

macrumors 604
Jul 16, 2002
7,028
1
back in NYC!
Maybe apple is trying to send you a secret message.... :eek: :confused: ... That is coded..... I have been very happy with the new calculator in Jag. It is a lot better then any other calculator that ever shipped with a mac. As for your problem, I bet it was fixed in 10.2.1, but hey, I really have no clue... :D
 

Stike

macrumors 65816
Jan 31, 2002
1,010
4
Germany
It happens only in Extended mode. Since its a scientific mode, you should know :) that no real numbers exist. "10,5" for example, does not exist. Everything is an approximation in scientific mode. Thus you get the 99999999....

Edit: It doesnt happen in simple mode because the calc rounds everything. You should do that in sci mode too, then the result is completely correct.
 

Zenith

macrumors 6502
May 18, 2001
300
0
Norway
Hm.. i get the same result in 10.2.1... I haven't downloaded the security update yet, but i'm sure it doesn't fix it.
 

shadowfax0

macrumors 6502
May 2, 2002
408
0
I ahve 10.2.1 and te same thing happens to me, VBERY odd, but seriously, it's .9999999999 rather than 1, I don't think the calculation will be off (and if it is, say you used Significant Figures!) Those things PISS ME OFF!
 
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