program Matrix_multiplication type BasicProgram {}
	
	function main()
		a float[][] = [[1,2,3],[4,5,6]];
		b float[][] = [[1,2],[3,4],[5,6]];
		c float[][] = mult(a, b);
	end
	
	function mult(a float[][], b float[][]) returns(float[][])
		if(a.getSize() == 0)
			return (new float[0][0]);
		end
		if(a[1].getSize() != b.getSize())
			return (null); //invalid dims
		end
	
	   	n int = a[1].getSize();
	   	m int = a.getSize();
	   	p int = b[1].getSize();
		
		ans float[0][0];
		ans.resizeAll([m, p]);
		
		// Calculate dot product.
		for(i int from 1 to m)
			for(j int from 1 to p)
				for(k int from 1 to n)
	            	                ans[i][j] += a[i][k] * b[k][j];
				end
			end
		end
		return (ans);
	end
end