public MatrisBase <object> Col(MatrisBase <object> A, int j, int based = 0) { return(!A.IsValid() ? throw new Exception(CompilerMessage.MAT_INVALID_SIZE) : j - based < 0 || j - based >= A.Col ? throw new Exception(CompilerMessage.MAT_OUT_OF_RANGE_INDEX("sütun", based, A.Col - 1)) : A.ColMat(j, based)); }