63.25 Diameter

Diameter( gamma )

This function returns the diameter of gamma. A diameter of -1 is returned if gamma is not (strongly) connected.

    gap> Diameter( JohnsonGraph( 5, 3 ) );
    2
    gap> Diameter( JohnsonGraph( 5, 4 ) );
    1 

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GAP 3.4.4
April 1997