Polynomials in Python HackerRank Solution

Hello Programmers, In this post, you will know how to solve the Polynomials in Python HackerRank Solution. This problem is a part of the HackerRank Python Programming Series.

One more thing to add, don’t directly look for the solutions, first try to solve the problems of Hackerrank by yourself. If you find any difficulty after trying several times, then you can look for solutions.

Polynomials in Python HackerRank Solution

Problem

PolyThe poly tool returns the coefficients of a polynomial with the given sequence of roots.

print numpy.poly([-1, 1, 1, 10])        #Output : [  1 -11   9  11 -10]

rootsThe roots tool returns the roots of a polynomial with the given coefficients.

print numpy.roots([1, 0, -1])           #Output : [-1.  1.]

PolyintThe polyint tool returns an antiderivative (indefinite integral) of a polynomial.

print numpy.polyint([1, 1, 1])          #Output : [ 0.33333333  0.5         1.          0.        ]

PolyderThe polyder tool returns the derivative of the specified order of a polynomial.

print numpy.polyder([1, 1, 1, 1])       #Output : [3 2 1]

PolyvalThe polyval tool evaluates the polynomial at specific value.

print numpy.polyval([1, -2, 0, 2], 4)   #Output : 34

PolyfitThe polyfit tool fits a polynomial of a specified order to a set of data using a least-squares approach.

print numpy.polyfit([0,1,-1, 2, -2], [0,1,1, 4, 4], 2)
#Output : [  1.00000000e+00   0.00000000e+00  -3.97205465e-16]

 The functions polyadd, polysub, polymul, and polydiv also handle proper addition, subtraction, multiplication, and division of polynomial coefficients, respectively. 

Task :

You are given the coefficients of a polynomial P.
Your task is to find the value of P at point x.

Input Format :

The first line contains the space separated value of the coefficients in P.
The second line contains the value of x.

Output Format :

Print the desired value.

Sample Input :

1.1 2 3
0

Sample Output :

3.0

Polynomials in Python HackerRank Solutions

import numpy
poly = [float(x) for x in input().split()]
x = float(input())
print(numpy.polyval(poly, x))

Disclaimer: The above Problem (Polynomials in Python) is generated by Hackerrank but the Solution is Provided by BrokenProgrammers. This tutorial is only for Educational and Learning purposes.

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