public void Axpy()
{
DoubleVector a = new DoubleVector(new double[4]{0,1,2,3});
Double scal = 3;
DoubleVector b = new DoubleVector(4);
b.Axpy(scal,a);
a.Scale(scal);
Assert.AreEqual(a[0],b[0]);
Assert.AreEqual(a[1],b[1]);
Assert.AreEqual(a[2],b[2]);
Assert.AreEqual(a[3],b[3]);
}
