Polynomial.h

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/*
 * Polynomial.h
 *
 *  Created on: Dec 21, 2019
 *      Author: Nikhil
 */

#ifndef SRC_POLYNOMIAL_H_
#define SRC_POLYNOMIAL_H_

#include <deque>
#include <cmath>

class Polynomial {
public:
    Polynomial(const std::deque<double>& coefficients):coefficients(coefficients)
    {}
    Polynomial()=default;
    virtual ~Polynomial(){}
    std::deque<double> coefficients;

    double operator()(const double& argument) const
    {
        int degree= 0;
        double value= 0;
        for(const auto& coefficient : coefficients)
        {
            value= value + coefficient*pow(argument,degree);
            degree++;
        }

        return value;
    }

    Polynomial integrate() const
    {
        Polynomial p;
        int degree= 0;
        p.coefficients.push_back(0);
        for(const auto& coefficient : coefficients)
        {
            p.coefficients.push_back(coefficient/(degree+1));
            degree++;
        }
        return p;
    }
};

#endif /* SRC_POLYNOMIAL_H_ */