private void Form1_Load(object sender, EventArgs e)
{
// Make two triangular arrays.
const int numRows = 3;
TriangularIntArray array1 = new TriangularIntArray(numRows);
array1[0, 0] = 1;
array1[1, 0] = 2;
array1[1, 1] = 3;
array1[2, 0] = 4;
array1[2, 1] = 5;
array1[2, 2] = 6;
TriangularIntArray array2 = new TriangularIntArray(numRows);
array2[0, 0] = 10;
array2[1, 0] = 20;
array2[1, 1] = 30;
array2[2, 0] = 40;
array2[2, 1] = 50;
array2[2, 2] = 60;
TriangularIntArray array3 = array1.TimesFull(array2);
TriangularIntArray array4 = array1.Times(array2);
resultTextBox.Text =
array1.ToString() + Environment.NewLine +
array2.ToString() + Environment.NewLine +
array3.ToString() + Environment.NewLine +
array4.ToString();
resultTextBox.Select(0, 0);
}
// Multiply this array on the right by another array.
public TriangularIntArray Times(TriangularIntArray other)
{
TriangularIntArray result = new TriangularIntArray(this.NumRows);
for (int i = 0; i < NumRows; i++)
{
for (int j = 0; j < NumRows; j++)
{
// Calculate the [i, j] entry.
int total = 0;
for (int k = j; k <= i; k++)
{
total += this[i, k] * other[k, j];
}
result[i, j] = total;
}
}
return(result);
}