public void ShouldExtractVector()
{
//Arrange
var vector = new DenseVector(new[]{1, 2, 3, 4, 5 ,6 ,7.0});
//Act
var extracted = vector.Extract(new[] {0, 2, 5});
//Assert
AreEqual(3, extracted.Count);
AreEqual(new []{1.0, 3.0, 6.0}, extracted.ToArray());
}
