[WP 31S] Manual 6" x 9" perfect bound

[walter b]

For those of you still looking for Christmas gifts: how about introducing RPN to some new folks? WP 31S is designed as an easy entry sci/tech calc. Employing it we could lower the average age of RPN aficionados significantly. It's on sale at http://commerce.hpcalc.org/31s.php. And very soon, a perfect bound printed manual will be available, printed in the USA.

d:-)