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answered Feb 27 '23 00:00
In C#, double is a built-in data type that represents a double-precision floating-point number. It is used to store decimal values with higher precision than the float data type.
The double data type can store numbers with up to 15-16 decimal digits of precision , depending on the value being stored. It is commonly used for storing values such as measurements, currency amounts, and scientific calculations.
In C#, you can declare a double variable by using the double keyword , followed by the variable name and an optional initial value, like this:
double myDouble = 3.14159;
You can perform arithmetic operations on double variables, such as addition, subtraction, multiplication, and division. C# also provides a variety of built-in math functions that can be used with double values, such as Math.Sin, Math.Cos, and Math.Sqrt.
It's important to be aware of the limitations of using floating-point arithmetic, such as the potential for rounding errors and the limitations of representing certain decimal values. However, in many cases, the double data type provides sufficient precision for common programming tasks.