Long-float variant giving more precision to numerical computations.



Hello Ray,

The changes have been committed, except for the changes to the Fortran code.  Patches
to the Fortran code are temporarily available here:

Patches to use long-float (SCL, CLISP):
http://www.scieneer.com/files/maxima-lf-patch1.txt.gz

Patches to use CMU CL double-double-float:
http://www.scieneer.com/files/maxima-ddf-patch1.txt.gz

The CLISP version is working relatively well.  The CMUCL double-double float version has
some problems that have not been explored yet but can be reproduced with the above patch.

Regards
Douglas Crosher