HP HP-21 - Page 18

16 Getting Started
w Intermediate answers reappear automatically. You don’t
have to remember where they are and then summon them.
w You can calculate in the same order you do with
pencil and paper. You don’t have to think the problem
through ahead of time.
The HP system takes a few minutes to learn. But you’ll be
amply rewarded by the ease with which the HP-21 solves the
longest and most complex equations. With HP, the investment
of a few moments of learning yields a lifetime of mathematical
bliss.