float queries...

[Victor]

can i change from exponential form (1.0000e-1) to the decimal format (0.00001)??

[jonnin]

Yes. floats are all stored the same way, in binary IEEE format. Display
routines convert them into ascii based on some settings. If using cin cout,
you need to play with iomanip.h and setprecision. printf can be done by
printf("%f1.5", floatnum); for 5 decimal places. adding an e makes it exponential
again i think.

"Victor" <wuhanvic@singnet.com.sg> wrote:
>
>can i change from exponential form (1.0000e-1) to the decimal format (0.00001)??

[Danny Kalev]

yes, use the 'fixed' i/o manipulator:

double f;

cout<<fixed<<f<<endl;

Danny
Victor wrote:
>
> can i change from exponential form (1.0000e-1) to the decimal format (0.00001)??

[Victor]

thnaks..but wat about usage in mfc..?

Danny Kalev <dannykk@inter.net.il> wrote:
>yes, use the 'fixed' i/o manipulator:
>
>double f;
>
>cout<<fixed<<f<<endl;
>
>Danny
>Victor wrote:
>>
>> can i change from exponential form (1.0000e-1) to the decimal format (0.00001)??

[Tim Mathias]

Have you tried "sprintf", eg:

char my_str [100] = "Not set yet";
double my_float = 0.0000001;
sprintf (my_str, "my_float = %9.7lf", my_float);
AfxMessageBox (my_str);

I hope this helps.

Regards,
Tim.

"Victor" <wuhanvic@singnet.com.sg> wrote:
>
>thnaks..but wat about usage in mfc..?
>
>Danny Kalev <dannykk@inter.net.il> wrote:
>>yes, use the 'fixed' i/o manipulator:
>>
>>double f;
>>
>>cout<<fixed<<f<<endl;
>>
>>Danny
>>Victor wrote:
>>>
>>> can i change from exponential form (1.0000e-1) to the decimal format
(0.00001)??
>