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24 lines
1.1 KiB
Markdown
24 lines
1.1 KiB
Markdown
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**SINGLE** variables are 4 byte floating decimal point numerical values up to seven digits in length.
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## Syntax
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> [DIM](DIM) *variable* AS SINGLE
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## Description
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* Values can range up to 7 digits. Decimal point accuracy depends on whole value places taken.
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* Single is the **default variable type** assigned to undefined variables without a type suffix.
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* Variable suffix type designation is **!**. Suffix can also be placed after a literal numerical value by user or automatically by the IDE.
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* Values returned may be expressed using exponential or [scientific notation](scientific-notation) using **E** for SINGLE or **D** for DOUBLE precision.
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* Floating decimal point numerical values cannot be [_UNSIGNED](_UNSIGNED)!
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* Values can be converted to 4 byte [ASCII](ASCII) string values using [_MKS$](_MKS$) and back with [_CVS](_CVS).
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* **Warning: QBasic keyword names cannot be used as numerical variable names with or without the type suffix!**
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## See Also
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* [DIM](DIM), [DEFSNG](DEFSNG)
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* [MKS$](MKS$), [CVS](CVS)
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* [DOUBLE](DOUBLE), [_FLOAT](_FLOAT)
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* [LEN](LEN)
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* [Variable Types](Variable-Types)
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