# grid_fibon.m

Fibonacci type spherical quadrature grids, as per Appendix A.5 of (http://dx.doi.org/10.1016/j.jmr.2014.05.009).

## Syntax

[alps,bets,gams,whts,vorn]=grid_fibon(type,parm)

## Arguments

type - 'fibonacci', 'zcw', or 'zcwn' parm - point count parameter, the resulting grid will have 2*n+1 points ('fib'), fibonacci(n+2) points ('zcw'), or n points (zcwn).

## Outputs

alps - alpha Euler angles of the grid (radians), zeros because these are two-angle grids bets - beta Euler angles of the grid (radians) gams - gamma Euler angles of the grid (radians) whts - Voronoi tessellation body angle weights vorn - a cell array of matrices containing the coordinates of the vertices of the Voro- noi polyhedra

## Examples

Below is the figure produced by grid_fibon('zcwn',300).

## Notes

If no outputs are requested, a schematic is drawn.

## See also

Integration grids, Appendix I: powder grids

*Version 2.6, authors: Ilya Kuprov*