/**
* Main program.
*
* @param array $args Command-line arguments.
* @return integer Zero on success; non-zero on failure.
*/
public static function main($args)
{
printf("Application program number 3.\n");
$status = 0;
$p1 = new PolynomialAsOrderedList();
$p1->add(new Term(4.5, 5));
$p1->add(new Term(3.2, 14));
printf("%s\n", str($p1));
$p1->differentiate();
printf("%s\n", str($p1));
$p2 = new PolynomialAsSortedList();
$p2->add(new Term(7.8, 0));
$p2->add(new Term(1.6, 14));
$p2->add(new Term(9.999000000000001, 27));
printf("%s\n", str($p2));
$p2->differentiate();
printf("%s\n", str($p2));
$p3 = new PolynomialAsSortedList();
$p3->add(new Term(0.6, 13));
$p3->add(new Term(-269.973, 26));
$p3->add(new Term(1000, 1000));
printf("%s\n", str($p3));
printf("%s\n", str($p2->plus($p3)));
return $status;
}
/**
* Main program.
*
* @param array $args Command-line arguments.
* @return integer Zero on success; non-zero on failure.
*/
public static function main($args)
{
printf("Application program number 4.\n");
$status = 0;
$p1 = new PolynomialAsSortedList();
$p1->add(new Term(4.5, 5));
$p1->add(new Term(3.2, 14));
printf("%s\n", str($p1));
$p2 = new PolynomialAsSortedList();
$p2->add(new Term(7.8, 3));
$p2->add(new Term(1.6, 14));
$p2->add(new Term(9.999000000000001, 27));
printf("%s\n", str($p2));
$p3 = $p1->plus($p2);
printf("%s\n", str($p3));
return $status;
}
/**
* Returns the sum of this polynomial and the specified polynomial.
* This method is not implemented.
*
* @param object IPolynomial $poly
* The polynomial to be added to this polynomial.
* @return object IPolynomial
* $he sum of this polynomial and the specified polynomial.
*/
public function plus(IPolynomial $poly)
{
$result = new PolynomialAsSortedList();
$p1 = $this->list->getIterator();
$p2 = $poly->list->getIterator();
$term1 = NULL;
$term2 = NULL;
while ($p1->valid() && $p2->valid()) {
if ($term1 === NULL) {
$term1 = $p1->succ();
}
if ($term2 === NULL) {
$term2 = $p2->succ();
}
if ($term1->getExponent() < $term2->getExponent()) {
$result->add(clone $term1);
$term1 = NULL;
} elseif ($term1->getExponent() > $term2->getExponent()) {
$result->add(clone $term2);
$term2 = NULL;
} else {
$sum = $term1->plus($term2);
if ($sum->getCoefficient() != 0) {
$result->add($sum);
}
$term1 = NULL;
$term2 = NULL;
}
}
while ($term1 !== NULL || $p1->valid()) {
if ($term1 === NULL) {
$term1 = $p1->succ();
}
$result->add(clone $term1);
$term1 = NULL;
}
while ($term2 !== NULL || $p2->valid()) {
if ($term2 === NULL) {
$term2 = $p2->succ();
}
$result->add(clone $term2);
$term2 = NULL;
}
return $result;
}
