maths-polynomial_evalutation (TheAlgorithms#1214)

* maths-polynomial_evalutation

* added doctest and removed redundancy

Author: msk4862

maths/polynomial_evaluation.py

@@ -0,0 +1,25 @@
+def evaluate_poly(poly, x):
+    """
+        Objective: Computes the polynomial function for a given value x. 
+                Returns that value. 
+        Input Prams: 
+            poly: tuple of numbers - value of cofficients
+            x: value for x in f(x)
+        Return: value of f(x)
+
+        >>> evaluate_poly((0.0, 0.0, 5.0, 9.3, 7.0), 10)
+        79800.0
+    """
+
+    return sum(c*(x**i) for i, c in enumerate(poly))
+
+
+if __name__ == "__main__":
+    """
+        Example: poly = (0.0, 0.0, 5.0, 9.3, 7.0)  # f(x) = 7.0x^4 + 9.3x^3 + 5.0x^2 
+                 x = -13
+                 print (evaluate_poly(poly, x))  # f(-13) = 7.0(-13)^4 + 9.3(-13)^3 + 5.0(-13)^2 = 180339.9
+    """
+    poly = (0.0, 0.0, 5.0, 9.3, 7.0)
+    x = 10
+    print(evaluate_poly(poly, x))