Exercises and solutions from the same source, into a book
Description
The packageThe exsol package provides macros to allow for
embedding exercises and solutions in the LaTeX source of an
instructional text (e.g., a book or a course text) while
generating the following separate documents: your original text
that only contains the exercises, and a solution book that
contains only the solutions to the exercises (optionally, the
exercises themselves are also copied to the solution book). The
exercise data are generated when running LaTeX on your
document; the first run also writes the solutions to a
secondary file that may be included in a simple document
harness, may be processed by LaTeX, to generate a nice solution
book. The code of the package was derived (in large part) from
fancyvrb.
