consolidate all repos to one for archive

semester_1/programiranje_1/Vaje/Vaja_4/Kvadratna_enacba/main.cpp

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+#include <iostream>
+#include <cmath>
+#define f(x) a*x*x+b*x+c
+
+using namespace std;
+
+int main()
+{
+    float a, b, c, i, k=0, x1, x2, diskriminanta, realPart, imaginaryPart;
+    float min, max, der = 0, intg = 0;
+    double h=0.0001;
+    cout<<"Vpisi a: ";
+    cin>>a;
+    cout<<"Vpisi b: ";
+    cin>>b;
+    cout<<"Vpisi c: ";
+    cin>>c;
+
+    cout<<"Začetna vrednost:"<< c <<endl;
+
+    diskriminanta = b*b - 4*a*c;
+
+        if (diskriminanta > 0) {
+            x1 = (-b + sqrt(diskriminanta)) / (2*a);
+            x2 = (-b - sqrt(diskriminanta)) / (2*a);
+            cout << "Ničle so različne" << endl;
+            cout << "x1 = " << x1 << endl;
+            cout << "x2 = " << x2 << endl;
+        }
+
+        else if (diskriminanta == 0) {
+            cout << "Ničle so iste" << endl;
+            x1 = -b/(2*a);
+            cout << "x1 = x2 =" << x1 << endl;
+        }
+
+        else {
+            realPart = -b/(2*a);
+            imaginaryPart =sqrt(-diskriminanta)/(2*a);
+            cout << "Ničle so kompleksne"  << endl;
+            cout << "x1 = " << realPart << "+" << imaginaryPart << "i" << endl;
+            cout << "x2 = " << realPart << "-" << imaginaryPart << "i" << endl;
+        }
+
+
+    cout << "Vstavi x: ";
+    cin >> min;
+    der = ((f(min+h)-f(min))/h);
+    cout << "Odvod je: "<< der << endl;
+
+    cout << "Vstavi Xmin: ";
+    cin >> min;
+    cout<< "Vstavi Xmax: ";
+    cin >> max;
+    i=min;
+    while(i<max){
+        intg = (f(i)+f(i+h));
+        intg = intg*h;
+        intg = intg/2;
+        k=intg+k;
+        i=i+h;
+    }
+    cout << "\nIntegrala je " << intg <<endl;
+
+    return 0;
+}