65.145 SetCoveringRadius

SetCoveringRadius( code, intlist )

SetCoveringRadius enables the user to set the covering radius herself, instead of letting GUAVA compute it. If intlist is an integer, GUAVA will simply put it in the
boundsCoveringRadius field. If it is a list of integers, however, it will intersect this list with the boundsCoveringRadius field, thus taking the best of both lists. If this would leave an empty list, the field is set to intlist.

Because some other computations use the covering radius of the code, it is important that the entered value is not wrong, otherwise new results may be invalid.

    gap> code := BCHCode( 17, 3, GF(2) );;
    gap> BoundsCoveringRadius( code );
    [ 3 .. 4 ]
    gap> SetCoveringRadius( code, [ 2 .. 3 ] );
    gap> BoundsCoveringRadius( code );
    [ 3 ]  

Previous Up Top Next
Index