I think it should depend on the underlying architecture, on how it stores the floating data types
In case floats and double are implemented using IEEE 754, then floats have 8 bits for precision and double have 11 bits for precision. Normally the exponents are biased, which means that for float it ranges from 2^(-127) to 2^(+ 127) and for double it ranges from 2^(-1024) to 2^(+1024). Also, ANSI C standard does not mandate any specific format for storage of floats and doubles. The file floats.h is implementation dependent. ~Himanshu Aggarwal On Tue, Apr 13, 2010 at 6:10 AM, Anil C R <[email protected]> wrote: > correct me if I'm wrong but, float has a precision of around 8 digits. and > double 16 digits... if you want arbitrary precision floating point numbers, > try GNU BigNum library... > Anil > > > On Mon, Apr 12, 2010 at 9:54 PM, Himanshu Aggarwal < > [email protected]> wrote: > >> >> >> On Sun, Apr 11, 2010 at 6:55 PM, GentLeBoY <[email protected]>wrote: >> >>> how to store fractional numbers with a fractional part having 25-30 >>> digits after decimal place, >>> does long double has the same precision as double?. >>> 1 more prob. >>> format specifier for long double is %lf and same for double, so if i >>> write >>> long double a; >>> scanf("%lf",&a); >>> a=a*2; >>> printf("%lf",a); >>> why is the output -2.0000 ? >>> >>> -- >>> You received this message because you are subscribed to the Google Groups >>> "Algorithm Geeks" group. >>> To post to this group, send email to [email protected]. >>> To unsubscribe from this group, send email to >>> [email protected]<algogeeks%[email protected]> >>> . >>> For more options, visit this group at >>> http://groups.google.com/group/algogeeks?hl=en. >>> >>> >> >> Float has single precision. >> double has double precision. >> Long double has extended precision. >> >> For your requirement, even a float would suffice. check out the value of >> FLT_MAX . It is of the order of 10^37. >> >> ~Himanshu Aggarwal >> >> -- >> You received this message because you are subscribed to the Google Groups >> "Algorithm Geeks" group. >> To post to this group, send email to [email protected]. >> To unsubscribe from this group, send email to >> [email protected]<algogeeks%[email protected]> >> . >> For more options, visit this group at >> http://groups.google.com/group/algogeeks?hl=en. >> > > -- > You received this message because you are subscribed to the Google Groups > "Algorithm Geeks" group. > To post to this group, send email to [email protected]. > To unsubscribe from this group, send email to > [email protected]<algogeeks%[email protected]> > . > For more options, visit this group at > http://groups.google.com/group/algogeeks?hl=en. > -- You received this message because you are subscribed to the Google Groups "Algorithm Geeks" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/algogeeks?hl=en.
