<RefEntry id="expt"> <!-- This file is generated automatically from the DSSSL source. --> <!-- Do not edit this file! --> <?html-filename expt.html> <RefMeta> <RefEntryTitle>expt</RefEntryTitle> <RefMiscInfo Role="file">dblib.dsl</RefMiscInfo> </RefMeta> <RefNameDiv> <RefName>expt</RefName> <RefPurpose>Exponentiation</RefPurpose> </RefNameDiv> <RefSynopsisDiv><Title>Synopsis</Title> <Synopsis> (expt b n) </Synopsis> </RefSynopsisDiv> <RefSect1><Title>Description</Title> <para> Returns <literal>b</literal> raised to the <literal>n</literal>th power for integer <literal>n</literal> >= 0.</para> </RefSect1> <RefSect1><Title>Author</Title> <para> Norman Walsh, <ndw@nwalsh.com> </para> </RefSect1> <RefSect1><Title>Source Code</Title> <ProgramListing> (define (expt b n) ;; Exponentiation ;; (if (<= n 0) 1 (* b (expt b (- n 1))))) </ProgramListing> </RefSect1> </RefEntry>