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• Executable file r37/packages/alg/farith.red — part of check-in [f2fda60abd] at 2011-09-02 18:13:33 on branch master — Some historical releases purely for archival purposes

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• Executable file r38/packages/alg/farith.red — part of check-in [f2fda60abd] at 2011-09-02 18:13:33 on branch master — Some historical releases purely for archival purposes

  git-svn-id: https://svn.code.sf.net/p/reduce-algebra/code/trunk/historical@1375 2bfe0521-f11c-4a00-b80e-6202646ff360 (user: arthurcnorman@users.sourceforge.net, size: 1163) [annotate] [blame] [check-ins using]

module farith;  % Operators for fast arithmetic.

% Authors: A. C. Norman and P. M. A. Moore, 1981.

symbolic procedure iplus2(u,v); u+v;

symbolic procedure itimes2(u,v); u*v;

symbolic procedure isub1 a; a-1;

symbolic procedure iadd1 a; a+1;

remprop('iminus,'infix);

symbolic procedure iminus a; -a;

symbolic procedure idifference(a,b); a-b;

symbolic procedure iquotient(a,b); a/b;

symbolic procedure iremainder(a,b); remainder(a,b);

symbolic procedure igreaterp(a,b); a>b;

symbolic procedure ilessp(a,b); a<b;

symbolic procedure iminusp a; a<0;

symbolic smacro procedure iequal(u,v); eqn(u,v);

newtok '((!#) hash);
newtok '((!# !+) iplus2);
newtok '((!# !-) idifference);
newtok '((!# !*) itimes2);
newtok '((!# !/) iquotient);
newtok '((!# !>) igreaterp);
newtok '((!# !<) ilessp);
newtok '((!# !=) iequal);

infix #+,#-,#*,#/,#>,#<,#=;

precedence #+,+;
precedence #-,-;
precedence #*,*;
precedence #/,/;
precedence #>,>;
precedence #<,<;
precedence #=,=;

deflist('((idifference iminus)),'unary);

deflist('((iminus iminus)),'unary);

deflist('((iminus iplus2)), 'alt);

endmodule;

end;