DiFfRG::LoopIntegrals Namespace Reference

Functions
template<typename NT , int d, typename FUN >
NT	integrate (const FUN &fun, const QGauss< 1 > &x_quadrature, const double x_extent, const double k)
	Performs the integral.

Function Documentation

integrate()

template<typename NT , int d, typename FUN >

NT DiFfRG::LoopIntegrals::integrate	(	const FUN &	fun,
		const QGauss< 1 > &	x_quadrature,
		const double	x_extent,
		const double	k
	)

Performs the integral.

\[ \int d\Omega_{d} \int_0^\infty dq f(q^2) q^{d-1} \]

Template Parameters

NT	Number type used throughout.
d	Dimension of the integral.
FUN	Function type of the integrand.

Parameters

fun	Integrand, should be a callable with signature NT(double q^2).
x_quadrature	Quadrature rule for the integral over \(q^2\), \(q^2 = x * k^2\).
x_extent	Extent of the integral over \(q^2\), \(q^2 = x * k^2\).
k	Momentum scale as defined above.

Returns

NT Result of the integral.