*(guile.info.gz)* Exactness

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*(guile.info.gz)* **Complex Numbers**
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*(guile.info.gz)* **Number Syntax**
21.2.5 Exact and Inexact Numbers
--------------------------------
R5RS requires that a calculation involving inexact numbers always
produces an inexact result. To meet this requirement, Guile
distinguishes between an exact integer value such as `5' and the
corresponding inexact real value which, to the limited precision
available, has no fractional part, and is printed as `5.0'. Guile will
only convert the latter value to the former when forced to do so by an
invocation of the `inexact->exact' procedure.
-- Scheme Procedure: exact? x
-- C Function: scm_exact_p (x)
Return `#t' if X is an exact number, `#f' otherwise.
-- Scheme Procedure: inexact? x
-- C Function: scm_inexact_p (x)
Return `#t' if X is an inexact number, `#f' else.
-- Scheme Procedure: inexact->exact z
-- C Function: scm_inexact_to_exact (z)
Return an exact number that is numerically closest to Z.
-- Scheme Procedure: exact->inexact z
Convert the number Z to its inexact representation.

Info Catalog
*(guile.info.gz)* **Complex Numbers**
*(guile.info.gz)* **Numbers**
*(guile.info.gz)* **Number Syntax**

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