whats wrong with my calculations please???

[The Architekt]

what is wrong with my calculations?

 

These are just any numbers here...

 

google calculator

 

0.104384134 * 9.58 = 1

 

 

 

Calculateforfree.com / Online Calculator

 

http://www.calculateforfree.com/sci1.html

 

0.104384134*9.58 = 1.00000000372

I know about rounding off, but do calculators perform differently??

 

 

thanks

[Greg H.]

In short, yes. Different calculators have different levels of precision.

 

FWIW, my TI-92 gives the same answer as the google calc.

[elfmotat]

The best free online calculator you'll find is WolframAlpha: http://www.wolframalpha.com/input/?i=0.104384134+*+9.58

[The Architekt]

BUT THERE IS SOMETHING STILL WRONG THOUGH! REALLY PLEASE LOOK!

 

These are different numbers here:

 

 

Goolge Calculator:

 

27.12253364740064 * 0.03686971184183 = 1

 

 

 

Calculateforfree.com / Online Calculator

 

http://www.calculate...e.com/sci1.html

 

27.12253364740064*0.03686971184183 = 1

 

Could some numbers be differently read by calculators???

 

I have this right here:

 

Goolge Calculator:

 

27.12253364740064*0.03686971184183 = 1

 

 

Thanks for the link, I did not get 1 but rather: 0.99999999999999999840632...

 

 

Can calculators not be smart at all then because of this????

 

 

The best free online calculator you'll find is WolframAlpha: http://www.wolframal...04384134+*+9.58

Edited July 8, 2012 by The Architekt

[elfmotat]

Every calculator has a point at which they round off. Google calculator seems to round off earlier (less accurate), calculate for free rounds of a bit later (a little more accurate), and wolframalpha rounds off even later.

[The Architekt]

Then could this mean that some numbers drive precession better than others, regardless of calculators? I have never seen this type of stuff before, I thought I was in error but it seem they later numbers I have are exact with "any" calculator....

 

Every calculator has a point at which they round off. Google calculator seems to round off earlier (less accurate), calculate for free rounds of a bit later (a little more accurate), and wolframalpha rounds off even later.