(very) small suggestions

[Brian Gough]

Achim Gädke writes:
 > In chapter "Random Number Distributions" the section title "The
 > Spherical Distribution (2D & 3D)" could be extended to "The Spherical
 > Distribution (2D, 3D & n-D)". I've searched for 10 minutes for
 >    gsl_ran_dir_nd --- knowing that such a function exists --- but where
 > was it... :-)

Noted (it should be in the index under N-dimensional though).

 > To have readable output during do_siman this patch adds some tabs

Can you show me problem with the existing output. If the numbers run
together the best way is to increase the field widths in the numbers.

-- 
Brian