HP39G+ CPU 75Mhz ARM9
HP39G+ Display size 131 x 64 pixels 7 lines x 33 characters + 2 lines header + 1 line of menu, LCD Display Type, LCD 131 x 64 pixels dot matrix + indicators, Contrast Adjustable.
HP39G+ System logic: Entry-system logic Algebraic, Built-in functions 600+, Menus, prompts, Internal precision 15 digits.
HP39G+ Memory 200KB user, 256KB total
HP39G+ Connectivity via IR port IrDA, Connectivity USB.
HP39G+ Input with Keyboard Numbers, Letters, Beeper On/off
HP39G+ Power System: AAA x 3 + CR2032, Power off Memory protection, Battery life about 2 months, Auto power off Approximately 5 minutes.
HP39G+ Physical characteristics: Weight 220 grams, 7.7 ounces; Size (L × W × D) 184.0 × 87.0 × 23.5 mm, 7.2 × 3.4 × .09 in
HP39G+ both key top and enclosure were made from hard plastic material.
HP39G+ Subject Suitability: General math, Pre-Algebra/Algebra, Trigonometry, Statistics, Geometry, Biology, Chemistry, Physics, Earth sciences.
Graphing Features
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2-D Function, Polar, Parametric Plot
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sequence; cobweb, stairstep plot
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plot/table screen, box whisker plot
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Histogram, Scatter Plot
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Find: Intersect, Extremum, Slope, Area
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Zoom, Trace, Co-ordinates, Shade
Math Features
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+, -, x, ÷, √, 1/x, +/-, In, ex, x√y
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yx, LOG, 10x, x2, %, π , n!
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Fractions
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Degrees, radians, or grads mode
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Trigonometric functions/inverses
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Hyperbolics/inverses
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HP Solve application (root finder)
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Numeric Integration
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Symbolic Integration (simple cases)
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Numeric differentiation
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Symbolic differentiation (simple cases)
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Complex number of functions
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Polynomial root finder, Taylor series
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Absolute value, round
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Integer, & fractional part of a number
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Modulo function, floor, ceiling
Scientific features
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decimal hrs/hrs min sec conversions
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polar/rectangular conversions
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angle conversions
Statistical Features
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Σx, Σx2, Σy, Σy2, Σxy
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Sample standard deviation, mean
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Population standard deviation
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Linear regression
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Combinations, permutations
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Weighted mean
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Edit, save, name, list
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Curve fit ( LIN, LOG, EXP, POW )
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Plot statistical data
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Hypothesis tests
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Confidence intervals
Programming features
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root finder: HP Solve
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number of steps/regs or bytes: 200KB
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number of Programs/formulae: ++
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levels of subroutines: ++
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branching
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alpha prompts in programs
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input forms, alpha string manipulation
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indirect addressing
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index looping
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alpha listing