What is the difference between float and double? - Stack Overflow
I've read about the difference between double precision and single precision. However, in most cases, float and double seem to be interchangeable, i.e. using one or the other does not seem to affec...

What does the !! (double exclamation mark) operator do in JavaScript ...
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 second one "inverts" it back again to its original state, but now in an actual Boolean value. That way you have consistency:

c++ - what's a variable with & -> double& - Stack Overflow
5 double& is just a double passed by reference. In VB.NET, it would be declared ByRef dec_deg as Double. EDIT: However, I would recommend instead of using a void function to set a value by reference, just change the return type to double and return the expression instead of having to pass a variable by reference.

How do I use bitwise operators on a "double" on C++?
Now by accessing elements c[0] through c[sizeof(double) - 1] you will see the internal representation of type double. You can use bitwise operations on these unsigned char values, if you want to. Note, again, that in general case in order to access internal representation of type int you have to do the same thing.

Correct format specifier for double in printf - Stack Overflow
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.

What is the difference between the | and || or operators?
The double pipe "||" is a logical or, and can be used in logical statements, like "x == 0 || x == 1". Here's an example of what the bitwise or does: if a=0101 and b=0011, then a|b=0111.

How to use the PI constant in C++ - Stack Overflow
I want to use the PI constant and trigonometric functions in some C++ program. I get the trigonometric functions with include <math.h>. However, there doesn't seem to be a definition for PI i...

What exactly does Double mean in java? - Stack Overflow
A Double in Java is the class version of the double basic type - you can use doubles but, if you want to do something with them that requires them to be an object (such as put them in a collection), you'll need to box them up in a Double object.

java - Comparator with double type - Stack Overflow
Comparator with double type Asked 14 years, 9 months ago Modified 5 years, 7 months ago Viewed 119k times

Difference between decimal, float and double in .NET?
What is the difference between decimal, float and double in .NET? When would someone use one of these?