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#@local cycls,i,j,op
gap> START_TEST("infinity.tst");
# printing and unary minus
gap> infinity;
infinity
gap> -infinity;
-infinity
# string conversion
gap> String(infinity);
"infinity"
gap> String(-infinity);
"-infinity"
# addition and subtraction
gap> infinity + infinity;
infinity
gap> -infinity - infinity;
-infinity
gap> infinity + 1;
infinity
gap> 1 + infinity;
infinity
gap> -infinity + 1;
-infinity
gap> 1 - infinity;
-infinity
#
gap> infinity + -infinity;
Error, no method found! For debugging hints type ?Recovery from NoMethodFound
Error, no 1st choice method found for `+' on 2 arguments
gap> infinity - infinity;
Error, no method found! For debugging hints type ?Recovery from NoMethodFound
Error, no 1st choice method found for `+' on 2 arguments
gap> -infinity + infinity;
Error, no method found! For debugging hints type ?Recovery from NoMethodFound
Error, no 1st choice method found for `+' on 2 arguments
gap> -infinity - (-infinity);
Error, no method found! For debugging hints type ?Recovery from NoMethodFound
Error, no 1st choice method found for `+' on 2 arguments
# comparison
gap> cycls := [ -infinity, -10, 0, 42, E(5), infinity ];
[ -infinity, -10, 0, 42, E(5), infinity ]
gap> for op in [ \=, \< ] do
> for i in [1..Length(cycls)] do
> for j in [1..Length(cycls)] do
> if IsCyc(cycls[i]) and IsCyc(cycls[j]) then
> continue;
> fi;
> Print(cycls[i], NameFunction(op), cycls[j]);
> Print(" gives correct result? ");
> Print(op(cycls[i], cycls[j]) = op(i, j));
> Print("\n");
> od;
> od;
> od;
-infinity=-infinity gives correct result? true
-infinity=-10 gives correct result? true
-infinity=0 gives correct result? true
-infinity=42 gives correct result? true
-infinity=E(5) gives correct result? true
-infinity=infinity gives correct result? true
-10=-infinity gives correct result? true
-10=infinity gives correct result? true
0=-infinity gives correct result? true
0=infinity gives correct result? true
42=-infinity gives correct result? true
42=infinity gives correct result? true
E(5)=-infinity gives correct result? true
E(5)=infinity gives correct result? true
infinity=-infinity gives correct result? true
infinity=-10 gives correct result? true
infinity=0 gives correct result? true
infinity=42 gives correct result? true
infinity=E(5) gives correct result? true
infinity=infinity gives correct result? true
-infinity<-infinity gives correct result? true
-infinity<-10 gives correct result? true
-infinity<0 gives correct result? true
-infinity<42 gives correct result? true
-infinity<E(5) gives correct result? true
-infinity<infinity gives correct result? true
-10<-infinity gives correct result? true
-10<infinity gives correct result? true
0<-infinity gives correct result? true
0<infinity gives correct result? true
42<-infinity gives correct result? true
42<infinity gives correct result? true
E(5)<-infinity gives correct result? true
E(5)<infinity gives correct result? true
infinity<-infinity gives correct result? true
infinity<-10 gives correct result? true
infinity<0 gives correct result? true
infinity<42 gives correct result? true
infinity<E(5) gives correct result? true
infinity<infinity gives correct result? true
#
gap> STOP_TEST("infinity.tst");
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