Do u have to use only C++ ,cant u use scripting languages like Python....where precision is very good in Python..esp wen u use Si-Py....
On Tue, Apr 13, 2010 at 10:10 PM, Himanshu Aggarwal <[email protected] > wrote: > 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). > > ~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]<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.
