Added new function quadratic()

pygorithm/math/quadratic.py

@@ -0,0 +1,22 @@
+"""
+Author: Anthony Nguyen
+Created On: 28 September 2019
+"""
+
+import math
+
+
+def quadratic():
+    """
+    This function returns the x values that are the solutions to a quadratic equation given a, b, and c
+
+    The quadratic equation is formed by ax^2+bx+c=0
+    """
+    a = float(input('Enter a:'))
+    if a == 0:
+        return 'You cannot have "a" be 0 in a standard quadratic equation. Try again.'
+    b = float(input('Enter b: '))
+    c = float(input('Enter c: '))
+    d1 = math.sqrt((b ** 2) - (4 * a * c))
+    d2 = -1 * (math.sqrt((b ** 2) - (4 * a * c)))
+    return ((-1 * b) + d1) / (2 * a) and ((-1 * b) + d2) / (2 * a)