@Test
public void testNonZeroCount() {
AVector v = Vectorz.createUniformRandomVector(5);
v.add(1);
assertEquals(v.length(), v.nonZeroCount());
v.scale(0.0);
assertEquals(0, v.nonZeroCount());
}
@Test
public void testOuterProducts() {
AVector v = Vectorz.createUniformRandomVector(5);
INDArray a = v.outerProduct(v);
assertTrue(a instanceof AMatrix);
AMatrix m = (AMatrix) a;
AVector v2 = v.clone();
v2.square();
assertEquals(v2, m.getLeadingDiagonal());
}