RB 5.1 windows : Is it a joke ?

Hi Pascal,

Quote:

> 1.3 is 13 multiplied by 10 to the power of -1.

> The mantisse is 13 and the exponent is -1 (if my "forgotten

> vocabulary" is correct).

> So you can represent 1.3 (and -1.3) exactly in binary.

> Has my (maths, physics and computer sciences) high-school diploma

> expired? :-)

> A+

> Pascal.

Yes, it has. You cannot represent 0.1 in binary either - your method just

"moved" the problem around like "5 is not an even number" ... "but I can

represent 5 as 4 + 10^0 and both 4 and 10 are even so 5 must be even" ;-)

Doesn't work mate.

Btw I'm a biologist, not a mathematician or a computer programmer. I too had

an A+ in Maths (in Germany), and I'm quite shocked at the standards in Maths

here in New Zealand (people who got an A+ and who can't even solve quadratic

equations properly).

Quote:

> This statement is shocking me (but maybe It should not?).

And yes, there are ways to do it exactly - you might be shocked to learn

that a cheap $5 pocket calculator beats the pants of your $1,000 computer

when it comes to maths ... ;-)

... but not by using the standard "single, double" - you need to encode your

own way of dealing with numbers on the basis of 10 (as opposed to the

computers way of dealing with numbers on the basis of 2)

Markus

P.S. System: 17in iMac, 512 MB, MacOS X 10.2.4, RB5.1fc5

--

Dr. Markus Winter

Tel: 0064 (0)9 373 7599 (wait for message then type extension) 83960

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