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_negative_vector()
{
var source = new VectorD(2);
source.Set(0, 1.5);
source.Set(1, -6);
var expected = new VectorD(2);
expected.Set(0, -1.5);
expected.Set(1, 6);
var actual = source.GetNegative();
Assert.Equal(expected, actual);
}