The HP 40gs Graphing Calculator has been specifically designed with both students and teachers in mind. As your calculations become more and more intricate, the HP 40gs makes solving them easy with a built-in Computer Algebra System (CAS). CAS delivers dynamic symbolic manipulation and numeric solving so you can easily perform complex arithmetric or calculus functions.

• Easy programming to create custom aplets using formulas and equations, to assist with learning
• Interactive history, notes and sketch capabilities to review and interact with data

Built for performance

• Dynamic split screen with adjustable contrast for greater readability
• 256KB total memory for greater storage capacity and increased performance
• 600+ built-in functions plus powerful HP Solve and other innovative applications
• Built-in library of 29 constants and easy metric unit conversions- ideal for math and science
• USB or serial ports for connecting to PCs and other devices to download, print and share data
• Enhanced HP keypad for greater comfort and reduced keying errors
• Slide-on hard cover included for greater protection and portability

Features of the HP 40gs Graphing Calculator

Math features include:

• Algebra features: factorization, expansion, substitution, systems of linear equations, linear algebra and matrices, among others
• Trigonometry (trigonometry functions/inverses and Hyperbolic functions/inverses, degrees, radians)
• Lists and sequences
• Exponential and logarithmic functions
• Permutations, combinations and factorials
• HP equation solver
• Metric/ imperial conversions
• +, -, ×, ÷, √, 1/ ×, +/-, In, e, x
• y , LOG, 10 , x , %, π , n!
• Fractions
• Degrees, radiants, or grads mode
• CAS system
• Numeric integration
• Symbolic integration
• Numeric differentiation
• Symbolic differentiation
• Complex number functions
• Taylor series
  
  
• Expanded plotting possibilities-function, parametric, polar, conic, sequence and statistical plots
• Functional analysis-root, extremum, slope, area and intersection
• Plotting with tracing and zooming
• Graphic, symbolic and numeric views

Specifications of the HP 40gs Graphing Calculator

CPU
CPU	75Mhz ARM9
Display
Display size	64x24x2.7mm
Display Type	FSTN, Matrix Display (131*64)
Contrast	User Selectable
System logic
Entry-system logic	Algebraic, Scientific and Textbook Built-in Fuctions
Built-in functions	Graphing, Mathematical, CAS, Scientific, Statistical, Programming, Operating
Menus, prompts, etc.	Contextual Menus, Choose Boxes, List and Dialogue Boxes
Internal precision	15 Digits, Infinite in CAS
Memory
Memory registers	9 Independent Memory
Input
Keyboard	Rotating Click
Power
Power off Memory protection	n/a
Battery life	65 days (based on 1 hr use per day)
Auto power off	Yes
Physical characteristics
Weight	120 g
Size (L × W × D)	157x75s12cm
Enclosure Material	Plastic
Key Top Material	Plastic