public _3Matrix(_3Vector row1, _3Vector row2, _3Vector row3)
{
rows = new Dictionary <int, _3Vector>();
rows.Add(1, row1);
rows.Add(2, row2);
rows.Add(3, row3);
}
public _3Matrix MultiplyByScalar(double scalar)
{
int i = 0;
_3Vector[] _row = new _3Vector[3];
foreach (var pair in rows)
{
_row[i] = new _3Vector(pair.Value.a * scalar, pair.Value.b * scalar, pair.Value.c * scalar);
i++;
}
return(new _3Matrix(_row[0], _row[1], _row[2]));
}
public _3Vector MultiplyByVector(_3Vector vector)
{
double[,] a = new double[3, 3];
for (int j = 1; j <= 3; j++)
{
for (int i = 1; i <= 3; i++)
{
a[i - 1, j - 1] = GetValueAt(j, i) * vector.V(i);
}
}
return(new _3Vector(a[0, 0] + a[1, 0] + a[2, 0],
a[0, 1] + a[1, 1] + a[2, 1],
a[0, 2] + a[1, 2] + a[2, 2]));
}
public _3Matrix MultiplyByAnotherMatrix(_3Matrix matrix)
{
_3Vector[] _row = new _3Vector[3];
double[] a = new double[3];
for (int k = 1; k <= 3; k++)
{
for (int j = 1; j <= 3; j++)
{
for (int i = 1; i <= 3; i++)
{
a[j - 1] += GetValueAt(j, i) * matrix.GetValueAt(i, k);
}
}
_row[k - 1] = new _3Vector(a[0], a[1], a[2]);
a = new double[3];
}
return(new _3Matrix(_row[0], _row[1], _row[2]));
}
public _3Vector Subtract(_3Vector vector)
{
return(new _3Vector(vector.a - a, vector.b - b, vector.c - c));
}
public _3Vector Add(_3Vector vector)
{
return(new _3Vector(vector.a + a, vector.b + b, vector.c + c));
}
public VectorPoints(_3Vector point,
IList <_3Vector> linesTo) // line is drawn from this object point to lineTo point.
{
this.point = point;
this.linesTo = linesTo;
}
