67.19 Interface to the CAS System

is a string that encodes the sf CAS library format of the character table tbl. This string can be printed to a file which then can be read into the sf CAS system using its get command (see NPP84).

The used line length is SizeScreen()[1] (see SizeScreen).

Only the known values of the following attributes are used. ClassParameters (for partitions only), ComputedClassFusions, ComputedPowerMaps, Identifier, InfoText, Irr, ComputedPrimeBlocks, ComputedIndicators, OrdersClassRepresentatives, Size, SizesCentralizers.

gap> Print( CASString( CharacterTable( "Cyclic", 2 ) ), "\n" );
'C2'
00/00/00. 00.00.00.
(2,2,0,2,-1,0)
text:
(#computed using generic character table for cyclic groups#),
order=2,
centralizers:(
2,2
),
reps:(
1,2
),
powermap:2(
1,1
),
characters:
(1,1
,0:0)
(1,-1
,0:0);
/// converted from GAP

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