scicpp::polynomial::polyval

Defined in header <scicpp/polynomials.hpp>

Evaluate a polynomial at points x.

Evaluate at a single point

template<typename T, std::size_t N>
T polyval(T x, const std::array<T, N> &coeffs)

Evaluate a polynomial with coefficients defined in a std::array.

template<typename T>
T polyval(T x, const std::vector<T> &coeffs)

Evaluate a polynomial with coefficients defined in a std::vector.

Evaluate over a range of points

template<class InputIt, class OutputIt, class Coeffs>
void polyval(InputIt xfirst, InputIt xlast, OutputIt res_first, const Coeffs &coeffs)

Evaluate a polynomial over an iterator range.

The memory pointed by res_first must be allocated with appropriate size before calling the function.

Parameters:
xfirst:First point of the range.
xlast:Last point of the range.
res_first:First point where the evaluation results are stored.
coeffs:An array containing the polynomial coefficients (std::array or std::vector)
template<typename T, std::size_t M, class Coeffs>
std::array<T, M> polyval(const std::array<T, M> &x, const Coeffs &coeffs)

Evaluate a polynomial over a std::array.

Parameters:
x:The std::array of points to be evaluated.
coeffs:An array containing the polynomial coefficients (std::array or std::vector)
template<typename T, class Coeffs>
std::vector<T> polyval(const std::vector<T> &x, const Coeffs &coeffs)

Evaluate a polynomial over a std::vector.

Parameters:
x:The std::vector of points to be evaluated.
coeffs:An array containing the polynomial coefficients (std::array or std::vector)