Rename function_3 to function_3.py

python/function_3.py

@@ -0,0 +1,11 @@
+# solves a quadratic equation in the form ax^2 + bx + c = 0
+def solve_quadratic(a, b, c):
+  inside = b**2 - (4 * a * c)
+  if (inside < 0):
+    return None
+  elif (inside == 0):
+    return [-4/(2 * a)]
+  else:
+    return [(-b + inside**0.5) / (2 * a), (-b - inside**0.5) / (2 * a)]
+
+print(solve_quadratic(1, 5, 6))