How can I multiply two matrices in C#?

Question

Like described in the title, is there some library in the Microsoft framework which allows to multiply two matrices or do I have to write my own method to do this? // I\'ve

Answer 1

multiply 2 matrix :

public double[,] MultiplyMatrix(double[,] A, double[,] B)
    {
        int rA = A.GetLength(0);
        int cA = A.GetLength(1);
        int rB = B.GetLength(0);
        int cB = B.GetLength(1);
        double temp = 0;
        double[,] kHasil = new double[rA, cB];
        if (cA != rB)
        {
            Console.WriteLine("matrik can't be multiplied !!");
        }
        else
        {
            for (int i = 0; i < rA; i++)
            {
                for (int j = 0; j < cB; j++)
                {
                    temp = 0;
                    for (int k = 0; k < cA; k++)
                    {
                        temp += A[i, k] * B[k, j];
                    }
                    kHasil[i, j] = temp;
                }
            }
        return kHasil;
        }
    }