I\'m writing a function that calculates the value of PI, and returns it as a double. So far so good. But once the function gets to 14 digits after the decimal place, it can\'t hold an开发者_如何学Pyth
double a = 2451550; double b = .407864; double c= a*b; cout<<c; I was expecting the results to be \"999898.9892\" but getting \"999899\". I ne开发者_C百科ed the actual unrounded result.Please
I need to convert a decimal to a string with N decimals (two or four) and NO thousand separator: \'XXXXXXX (dot) DDDDD\'
I need to change locale in the thre开发者_JAVA百科ad to parse a double with strtod() correctly, I\'m using setlocale() for this (C++). Is it thread safe?
I would need a regular expression that escapes or captures (if not already escaped) ALL the double quote characters INSIDE a single quoted string and then convert the opening single quotes to double q
I want to store a double (64-bit floating point) into the Window registry.What\'s the best way to go about it?
I am trying to create a generic class that handles ints, doubles, and strings.However, when trying to instantiate the template class withI get the following error message:
37.807614 to 37.786996 The rando开发者_运维知识库mly generated double must have the same precision (num of digits) as those above.
This question already has answers here: Closed 12 years ago. Possible Duplicates: Difference between float and double
This question already has answers here: Closed 10 years ago. Possible Duplicate: Round a double to 开发者_C百科2 significant figures after decimal point
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