public void zero_size_vector_has_zero_squared_magnitude()
{
var vector = new VectorD(0);
var expected = 0.0;
var actual = vector.GetMagnitude();
Assert.Equal(expected, actual);
}
public void can_normalize_sample()
{
var vector = new VectorD(new[] { 3.0, 4, 5, -6 });
var expected = vector.GetQuotient(vector.GetMagnitude());
var actual = vector.GetNormal();
Assert.Equal(expected, actual);
}
public void negative_values_produce_same_magnitude()
{
var vector = new VectorD(3);
vector.Set(0, 3);
vector.Set(1, -4);
vector.Set(2, 5);
var expected = vector.GetMagnitude();
var actual = vector.GetNegative().GetMagnitude();
Assert.Equal(expected, actual);
}
public void can_get_magnitude()
{
var vector = new VectorD(3);
vector.Set(0, 3);
vector.Set(1, -4);
vector.Set(2, 5);
var expected = Math.Sqrt(50.0);
var actual = vector.GetMagnitude();
Assert.Equal(expected, actual);
}