Legendre¶

class dolfin.cpp.function.Legendre¶

Bases: object

Interface for computing Legendre polynomials via Boost.

static d2dx()¶

Evaluate second derivative of polynomial of order n at point x

Parameters:	n (std::size_t) – (std::size_t) Order x (double) – (double) `Point`
Return type:	double
Returns:	double `Legendre` polynomial 2nd derivative value at x

static ddx()¶

Evaluate first derivative of polynomial of order n at point x

Parameters:	n (std::size_t) – (std::size_t) Order x (double) – (double) `Point`
Return type:	double
Returns:	double `Legendre` polynomial derivative value at x

static eval()¶

Evaluate polynomial of order n at point x

Parameters:	n (std::size_t) – (std::size_t) Order x (double) – (double) `Point`
Return type:	double
Returns:	double `Legendre` polynomial value at x