Difference between revisions of "Double"
esse quam videri
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=Relevance= | =Relevance= | ||
| − | Doubles are commonly used for large numbers in programming. | + | Doubles are commonly used for large numbers in programming. Being floating-point numbers, doubles can hold decimal precision. |
=Explanation= | =Explanation= | ||
| + | Doubles can be used for arithmetic expressions such as addition, multiplication, division in programming. It is functionally similar to a float data type, however, it can hold twice as much data. This means that the numbers used in a double can be twice as large or twice as accurate as that of a float. | ||
| + | <syntaxhighlight lang ="csharp"> | ||
| + | double a = 5; | ||
| + | double b = 2.5; | ||
| + | double result1, result2, result3; // You can also declare several variables of the same type this way. | ||
| + | |||
| + | result1 = a + b; // result1 = 7.5 | ||
| + | result2 = a * b; // result2 = 12.5 | ||
| + | result3 = a / b; // result3 = 2; | ||
| + | </syntaxhighlight> | ||
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== See also == | == See also == | ||
*[[Variable]] | *[[Variable]] | ||
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* [[SQL Data Types]] | * [[SQL Data Types]] | ||
* [[.NET Data Types]] | * [[.NET Data Types]] | ||
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Latest revision as of 15:58, 8 August 2019
Contents
Definition
A double is a data type. It is a floating-point number that has 64 bits of space.
Relevance
Doubles are commonly used for large numbers in programming. Being floating-point numbers, doubles can hold decimal precision.
Explanation
Doubles can be used for arithmetic expressions such as addition, multiplication, division in programming. It is functionally similar to a float data type, however, it can hold twice as much data. This means that the numbers used in a double can be twice as large or twice as accurate as that of a float.
double a = 5;
double b = 2.5;
double result1, result2, result3; // You can also declare several variables of the same type this way.
result1 = a + b; // result1 = 7.5
result2 = a * b; // result2 = 12.5
result3 = a / b; // result3 = 2;
