2nd order linear DEs



A few corrections or clarifications:

(0) To use odelin, you'll need to install the version of Nset 
from my webpage---odelin uses the function 'disjoin' that isn't
in the first version of Nset.

(1) When odelin finds a solution that involves the functions gauss_a 
or gauss_b, it hasn't (really) used the method of Bronstein and Lafaille.

(2) Change 'argument' to 'coefficient' in 

(9) The solver _only_ handles second order linear homogeneous DEs that 
have rational function arguments.  Nothing else.

(3) I really don't know why the solver slows after is solves a few
dozen DEs. 

Barton