A (double-precision 64-bit) floating point number has a decimal point and takes up twice as much memory as a single precisionFloating-point number. This data type is often simply called Double.
See Comparing Data Types across Languages for a table that compares the floating point data type across several different languages.
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Language |
Comments |
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VBScript |
The VBScript Double type contains a number as large as ± 3.402823x1038, and as small as ± 1.401298x10-45. |
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JScript |
JScript uses a generic "number" data type which corresponds to integer values as well as floating point values. There is no specific double-precision floating-point type in JScript. |
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PerlScript |
PerlScript does not have a specific type that represents floating-point values. |
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Python |
Python uses float to represent both single and double floating-point values. |
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C++ |
The C++ API uses double (8-byte double floating-point number). |
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C# |
The C# double type (System.Double) uses 15-16 digit precision and is in the approximate range ±5.0 × 10-324 to ±1.7 × 10308. |
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See Comparing Data Types across Languages for a table that compares the double-precision floating point data type across several different languages. For high-level information about how these languages approach data type in general, see one of the following topics: |
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