// text maxGrade
@Test
public void testPolyFunctionMaxGrade() {
PolyFunction f1 = new PolyFunction().setCoeff(1.0, 4);
assertEquals(4, f1.getMaxGrade());
PolyFunction f2 = new PolyFunction().setCoeff(1.0, 4).setCoeff(1.0, 2);
assertEquals(4, f2.getMaxGrade());
PolyFunction f3 = new PolyFunction().setCoeff(1.0, 2);
assertEquals(2, f3.getMaxGrade());
// set a coeff to 0
PolyFunction f4 = new PolyFunction().setCoeff(1.0, 1).setCoeff(1.0, 2).setCoeff(0.0, 2);
assertEquals(1, f4.getMaxGrade());
}
// empty coeffs should be 0
@Test
public void testPolyFunctionEmptyCoeff() {
PolyFunction f = new PolyFunction().setCoeff(7.0, 2).setCoeff(5.0, 0);
assertEquals((Double) 0.0, f.getCoeff(1));
}