From 917bf2164175f9436f0796cf433bd00fe42f8a5e Mon Sep 17 00:00:00 2001
From: Justsvetoslavov <justsvetoslavov@gmail.com>
Date: Sun, 17 Oct 2021 13:59:42 +0300
Subject: pract. 02 - Solutions

---
 pract_SI/pract. 02/task5.cpp | 51 ++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 pract_SI/pract. 02/task5.cpp

(limited to 'pract_SI/pract. 02/task5.cpp')

diff --git a/pract_SI/pract. 02/task5.cpp b/pract_SI/pract. 02/task5.cpp
new file mode 100644
index 0000000..419d6d4
--- /dev/null
+++ b/pract_SI/pract. 02/task5.cpp	
@@ -0,0 +1,51 @@
+#include<iostream>
+#include<cmath>
+using namespace std;
+int main()
+{
+	 double a, b, c;
+	 double root1, root2, imaginary;
+	 double discriminant;
+
+	 cout << "Finding the root of the equation a * x^2 + b * x + c = 0\n";
+
+	 cout << "Enter the value of a: ";
+	 cin >> a;
+
+	 if (a < 0.00000001)
+	 {
+		  cout << "If a is 0, then this is not a quadratic equation!\n";
+		  return 1;
+	 }
+
+	 cout << "Enter the value of b: ";
+	 cin >> b;
+
+	 cout << "Enter the value of c: ";
+	 cin >> c;
+
+	 discriminant = (b * b) - (4 * a * c);
+
+	 if (discriminant > 0)
+	 {
+		  root1 = (-b + sqrt(discriminant)) / (2 * a);
+		  root2 = (-b - sqrt(discriminant)) / (2 * a);
+
+		  cout << "Two distinct and real roots exist: " << root1 << " and " << root2 << endl;
+	 }
+	 else if (discriminant == 0)
+	 {
+		  root1 = root2 = -b / (2 * a);
+
+		  cout << "Two equal and real roots exist: " << root1 << " and " << root2 << endl;
+	 }
+	 else if (discriminant < 0)
+	 {
+		  root1 = root2 = -b / (2 * a);
+		  imaginary = sqrt(-discriminant) / (2 * a);
+
+		  cout << "Two distinct complex roots exist: " << root1 << "+" << imaginary << "i and " << root2 << "-" << imaginary << "i\n";
+	 }
+
+	 return 0;
+}
\ No newline at end of file
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