SpECTRE  v2023.01.13
cylindrical_endcap_helpers Namespace Reference

Functions used in more than one cylindrical_endcap map. More...

## Functions

double sin_ax_over_x (const double x, const double a)
Returns $$\sin(ax)/x$$.

DataVector sin_ax_over_x (const DataVector &x, const double a)
Returns $$\sin(ax)/x$$.

double one_over_x_d_sin_ax_over_x (const double x, const double a)
Returns $$\frac{1}{x} \frac{d}{dx}\left( \frac{\sin(ax)}{x} \right)$$, which approaches a finite limit as $$x$$ approaches zero.

DataVector one_over_x_d_sin_ax_over_x (const DataVector &x, const double a)
Returns $$\frac{1}{x} \frac{d}{dx}\left( \frac{\sin(ax)}{x} \right)$$, which approaches a finite limit as $$x$$ approaches zero.

## Detailed Description

Functions used in more than one cylindrical_endcap map.