Aufgabe 3.2 Verbesserung

w03-2024-ex2-quadGleichung/main.cpp

@@ -14,12 +14,15 @@ cin >> b;
 cout << "Geben sie c ein" << endl;
 cin >> c;
 
-if (pow(b,2)-4*a*c < 0) {
+int d = (pow(b,2)-4*a*c);
+cout << "Diskriminante = " << d << endl;
+
+if (d < 0) {
     cout << "keine Lösung" << endl;
-} else if (pow(b,2)-4*a*c == 0) {
+} else if (d == 0) {
     cout << "Eine Lösung X = " << (-b)/(2*a) << endl;
 } else {
-    cout << "Zwei Lösungen X = " << (-b+sqrt(pow(b,2)-4*a*c))/(2*a) << " oder X = " << (-b-sqrt(pow(b,2)-4*a*c))/(2*a) << endl;
+    cout << "Zwei Lösungen X = " << (-b+sqrt(d))/(2*a) << " oder X = " << (-b-sqrt(d))/(2*a) << endl;
 }
 return 0;
 }
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