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Comparison of APL dialects: Difference between revisions
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== Numeric types == | == Numeric types == | ||
{{Main|Number}} | |||
Traditionally, APL supports only one numeric type that is visible to the user, such as a floating-point number, or complex number whose components are floating-point. Other numeric types may be used by the implementation, but only for optimization: for example, [[APL\360]] uses packed 1-bit [[Boolean]] and 4-bit integer arrays that are automatically converted to float if an operation yields a value that doesn't fit in the type. [[ISO/IEC 13751:2001]] specifies that different representations of a number must be indistinguishable to a conforming program (which can call primitives but not implementation-specific system functions). | Traditionally, APL supports only one numeric type that is visible to the user, such as a floating-point number, or complex number whose components are floating-point. Other numeric types may be used by the implementation, but only for optimization: for example, [[APL\360]] uses packed 1-bit [[Boolean]] and 4-bit integer arrays that are automatically converted to float if an operation yields a value that doesn't fit in the type. [[ISO/IEC 13751:2001]] specifies that different representations of a number must be indistinguishable to a conforming program (which can call primitives but not implementation-specific system functions). | ||