Welcome to
the
HP-22S
Your
HP-22S reflects the superior quality
and
attention to detail in
engineering
and
manufacturing that have distinguished Hewlett-
Packard products for more
than
40
years. Hewlett-Packard stands
behind this calculator: we offer expertise to
support
its use (see inside
the back cover), accessories,
and
worldwide service.
Hewlett-Packard Quality
Our
calculators are made to excel, to last,
and
to
be
easy to use.
• This calculator is designed to withstand the usual drops, vibrations,
pollutants (smog, ozone), temperature extremes,
and
humidity vari-
ations that it may encounter in normal, everyday use.
• The calculator
and
its manual have been designed
and
tested for
ease of use.
We
use spiral binding to let the manual stay open to
any page,
and
we include many examples to highlight the varied
uses of this calculator.
• Advanced materials
and
permanent, molded key-lettering provide a
long keyboard life
and
a positive feel to the keyboard.
• CMOS (low-power) electronics
and
the liquid-crystal display allow
the HP-22S to retain data while it is off,
and
let the batteries last a
long time.
• The microprocessor
has
been optimized for fast
and
reliable com-
putations. The calculator uses 15 digits internally for precise results.
• Extensive research has created a design that has minimized the ad-
verse effects of static
electricity-a
potential cause of malfunctions
and
data loss in calculators.
Welcome
to
the
HP·225
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