public MyJavaArray pollapasiasmos1(MyJavaArray polla)
	{

		if(sthles!=polla.grammes)
		{
			return(null);
		}
		else
		{
			MyJavaArray apotelesma=	new MyJavaArray(polla.sthles,grammes);
			apotelesma.mhdenismos();
			for(int i=0;i<apotelesma.grammes;i++)
			{
				for(int j=0;j<apotelesma.sthles;j++)
				{
					for(int k=0;k<sthles;k++)
					{
						apotelesma.board[i][j]=apotelesma.board[i][j]+board[i][k]*polla.board[k][j];
					}
				}
			}
			return(apotelesma);
		
	}
	}
	public MyJavaArray pollapasiasmos2(MyJavaArray polla)
	{
		if(sthles!=polla.grammes)
		{
			return(null);
		}
		else
		{
			MyJavaArray apotelesma=	new MyJavaArray(polla.sthles,grammes);
			apotelesma.mhdenismos();
			for(int i=0;i<apotelesma.sthles;i++)
			{
				for(int j=0;j<apotelesma.grammes;j++)
				{
					for(int k=0;k<sthles;k++)
					{
						apotelesma.board[j][i]=apotelesma.board[j][i]+board[j][k]*polla.board[k][i];
					}
				}
			}
			return(apotelesma);
		}
	}