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<br><br>
'(schemers . org):<br>
an improper list<br>
of Scheme resources<br>
—[<a href="../../Welcome/">DS</a>]
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<h3>Standards</h3>
<p> There are two standards for Scheme: an official standard with IEEE
and a de facto one, often called
“R<sup><small>n</small></sup>RS”, short for the
<cite>Revised<sup><small>n<sup><small>th</small></sup></small></sup>
Report on the Algorithmic Language Scheme</cite>. In colloquial use,
“Scheme standard” usually refers to the latter. </p>
<p>
<ul>
<a name="#ieee1178">
<li>
<p> The IEEE standard, 1178-1990 (R1995), should be available at
technical bookstores, and <a
href="https://standards.ieee.org/standard/1178-1990.html">
from IEEE</a>. I do not believe there are free on-line
copies available. According to the document,
<blockquote>
IEEE publications are available from the Institute of Electrical and
Electronics Engineers, Service Center, 445 Hoes Lane, P.O.Box 1331,
Piscataway, NJ 08833-1331, USA.
</blockquote>
</p>
<a name="#rnrs">
<li>
<p>You can find <a href="https://small.r7rs.org/">R7RS</a> online,
as well as <a href="http://www.r6rs.org/">R6RS</a>.
The <a href="Charter/">Scheme Language Charter</a> documents the
process that led to the creation of R6RS.
You can also find the older revisions,
<a href="R5RS/">R5RS</a> and
<a href="https://people.csail.mit.edu/jaffer/r4rs.pdf">R4RS</a>, online.
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