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HP 40gs

Specifications

To learn more, visit www.hp.com/calculators

4AA1-0863ENUC, June 2007

HP Part Number

F2225AA

CPU

75Mhz ARM9

Display size

131 x 64 pixels (7 lines x 33 char 2 line 1 line menu)

Display Type

LCD

Connectivity

USB and serial ports for connectivity to PCs, 
other HP 40gs calculators and peripherals

Contrast

Adjustable 

Entry-system logic

Algebraic

Built-in functions

Over 750

Menus, prompts, etc.

Yes

Internal precision

15 digits

Memory

2.25MB total memory (2MB Flash + 256KB RAM)**

Keyboard

Alphanumeric 

Power

AAA x 4 + CR2032

Power off memory protection

Yes 

Auto power off

5 minutes

Size (L x W x D)

18.7 x 9.4 x 3.1 cm (7.4 x 3.7 x 1.2 inches)

Enclosure material

Plastic

Key top material

Plastic

Weight

Approximately 249 g (8.8 oz)

What's in the box

Calculator, slide-on protective cover, batteries, user manual, USB cable, unit-to-
unit cable and CD with connectivity software, Aplets and advanced user manual

Warranty

1-year warranty (may vary by region)

Subject suitability

General mathematics, Algebra, Trigonometry, Statistics, Geometry,
Biology, Chemistry, Physics, Earth Sciences 

Permitted for use on

SAT

®

Reasoning and SAT

®

Subject Tests

TM

in Math 1 & 2, ACT, PSAT/NMSQT,

AP Chemistry/Physics, AP Calculus/Statistics, PLAN, EXPLORE*

The HP 40gs Graphing Calculator includes 
all the features of the HP 9G plus:
• Computer Algebra System (CAS)
• Symbolic, numeric and graphic views
• Linear equation solver and triangle solver

• 2.25MB total memory (2MB Flash ROM + 256KB RAM)** 
• Enhanced connectivity with serial port, USB
• Adjustable contrast for greater readability
• Built-in constant library
• Slide-on hard cover included

© 2007 Hewlett-Packard Development Company, L.P. The information contained herein is subject to change 
without notice. The only warranties for HP products and services are set forth in the express warranty statements
accompanying such products and services. Nothing herein should be construed as constituting an additional 
warranty. HP shall not be liable for technical or editorial errors or omissions contained herein.

*ACT®, PLAN® and EXPLORE® are registered trademarks of ACT, Inc., which was not involved in the production
of and does not endorse this product. For more information, go to www.act.org. AP Calculus requires a graphing
calculator. Any scientific or graphing calculator (Excludes models with QWERTY (i.e. typewriter) keyboards, 
electronic writing pads, and pen-input/stylus-driven devices) is permitted for the following College Board tests: 
AP Chemistry, AP Physics, AP Statistics (a graphing calculator with statistical capabilities is expected), PSAT/NMSQT,
SAT® Reasoning and SAT® Subject Tests™ in Mathematics Level 1 and Level 2. For more information, go to
www.collegeboard.com. Policies are subject to change. AP® and SAT® are registered trademarks of the College
Board. PSAT/NMSQT® is a registered trademark of both the College Board and National Merit Scholarship
Corporation which were not involved in the production of and do not endorse this product.

**Flash ROM memory is for system upgrades only and is not available to the user.

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