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* Values can be converted to 32 byte [[ASCII]] strings using [[_MK$]] and back with [[_CV]]. | * Values can be converted to 32 byte [[ASCII]] strings using [[_MK$]] and back with [[_CV]]. | ||
* '''When a variable has not been assigned or has no type suffix, the value defaults to [[SINGLE]].''' | * '''When a variable has not been assigned or has no type suffix, the value defaults to [[SINGLE]].''' | ||
Revision as of 17:03, 20 July 2022
_FLOAT numerical values offer the maximum floating-point decimal precision available using QB64.
Syntax
Description
- QB64 always allocates 32 bytes to store this value.
- It is safe to assume this value is at least as precise as DOUBLE.
- Under the current implementation it is stored in a 10-byte floating point variable.
- _FLOAT variables can also use the ## variable name type suffix.
- Values returned may be expressed using exponential or scientific notation using E for SINGLE or D for DOUBLE precision.
- According to IEEE-754 this can store a value of up to 1.1897E+4932 compared to a DOUBLE which goes up to 1.7976E+308.
- Floating decimal point numerical values cannot be _UNSIGNED.
- Values can be converted to 32 byte ASCII strings using _MK$ and back with _CV.
- When a variable has not been assigned or has no type suffix, the value defaults to SINGLE.
See also