restructure and add ipi texs

ws2019/ipi/uebungen/cpp_headers/PolynomialImp.cc

@@ -0,0 +1,51 @@
+// Grad auswerten
+int Polynomial::degree ()
+{
+  return maxIndex();
+}
+
+// Addition von Polynomen
+Polynomial Polynomial::operator+ (Polynomial q)
+{
+  int nr=degree(); // mein grad
+
+  if (q.degree()>nr) nr=q.degree();
+
+  Polynomial r(nr); // Ergebnispolynom
+
+  for (int i=0; i<=nr; i=i+1)
+    {
+      if (i<=degree())
+        r[i] = r[i]+(*this)[i]; // add me to r
+      if (i<=q.degree())
+        r[i] = r[i]+q[i];       // add q to r
+    }
+
+  return r;
+}
+
+// Multiplikation von Polynomen
+Polynomial Polynomial::operator* (Polynomial q)
+{
+  Polynomial r(degree()+q.degree()); // Ergebnispolynom
+
+  for (int i=0; i<=degree(); i=i+1)
+    for (int j=0; j<=q.degree(); j=j+1)
+      r[i+j] = r[i+j] + (*this)[i]*q[j];
+
+  return r;
+}
+
+// Drucken
+void Polynomial::print ()
+{
+  if (degree()<0)
+    std::cout << 0;
+  else
+    std::cout << (*this)[0];
+    
+  for (int i=1; i<=maxIndex(); i=i+1) 
+    std::cout << "+" << (*this)[i] << "*x^" << i;
+
+  std::cout << std::endl;
+}