public void Sub()
{
SparseVectord sub = v1 - v2;
Assert.AreEqual((double)2.0, sub[1]);
Assert.AreEqual((double)-2.0, sub[2]);
}
public void Add()
{
SparseVectord add = v1 + v2;
Assert.AreEqual((double)2.0, add[1]);
Assert.AreEqual((double)2.0, add[2]);
Assert.AreEqual(0.0, add[3]);
Assert.AreEqual((double)14.0, add[5]);
Assert.AreEqual((double)5.0, add[12]);
Assert.AreEqual((double)5.0, add[14]);
}
public void ElementConstructionAndAccess()
{
// We construct giant sparse vector.
SparseVectord v = new SparseVectord(
new SparseElementd[] {
new SparseElementd(1, (double)2.0),
new SparseElementd(5, (double)3.0),
new SparseElementd(12, (double)4.0),
new SparseElementd(115, (double)70.0)
}, 150);
// Accessor test.
Assert.AreEqual(0.0, v[7]);
Assert.AreEqual((double)3.0, v[5]);
Assert.AreEqual((double)70.0, v[115]);
Assert.AreEqual(0.0, v[145]);
// Setting test.
v[15] = (double)6.0;
Assert.AreEqual((double)6.0, v[15]);
v[5] = (double)3.0;
Assert.AreEqual((double)3.0, v[5]);
}