At 04:18 PM 10/26/2000, [EMAIL PROTECTED] wrote:
>I have developed an aplication for Palm Pilot using CodeWarrior 5.0...
>I have some problems with the point floating, I have declared variables like
>float and when I want to store the following values I get other values
>
>
>Value to store Value really strored
>10. 23 -----------------> 10.22222229
>18.25 ---- ------------> 18.24999999
>2.84 --------- ------> 2.8399999999
>7.41 --------- ------> 7.409
This is inherent in the floating point representation used by virtually all computer
systems. The number is stored in binary, making it impossible to exactly express lots
of values which can be expressed in decimal. Either live with the problem (by rounding
the result to a specific number of digits), or don't use floating point numbers. For
many purposes, such as financial calculations, it makes more sense to use integers.
For example, you can do financial calculations using integers which represent the
number of cents, and simply display the result with a decimal point before the last
two digits. Please note that these problems are not unique to Palm OS.
--
Peter Epstein
Palm Inc. Developer
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