Format %lf in printf was not supported in old (pre-C99) versions of C language, which created superficial "inconsistency" between format specifiers for double in printf and scanf.

Jul 22, 2009 · When should I use double instead of decimal? has some similar and more in depth answers. Using double instead of decimal for monetary applications is a micro-optimization - …

Jun 19, 2012 · A double typically provides 16 (±1) decimal digits. Your example shows this: 4 8 12 16 v v v v 0.947368421052631578 long double 0.947368421052631526 double The answers …

494 A Double is not an Integer, so the cast won't work. Note the difference between the Double class and the double primitive. Also note that a Double is a Number, so it has the method …

In my earlier question I was printing a double using cout that got rounded when I wasn't expecting it. How can I make cout print a double using full precision?

The double "not" in this case is quite simple. It is simply two not s back to back. The first one simply "inverts" the truthy or falsy value, resulting in an actual Boolean type, and then the …

Jul 2, 2009 · A double has a much higher precision due to it's difference in size. If the numbers you are using will commonly exceed the value of a float, then use a double. Several other …

AFAIK, C supports just a few data types: int, float, double, char, void enum. I need to store a number that could reach into the high 10 digits. Since I'm getting a low 10 digit # from …

A simple comparison of two double values in Java creates some problems. Let's consider the following simple code snippet in Java. package doublecomparision; final public class …

I have a primitive float and I need as a primitive double. Simply casting the float to double gives me weird extra precision. For example: float temp = 14009.35F; …