HP 39gs Graficki Kalkulator

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Technical Specifications
  • 131x64 pixel display with adjustable contrast, showing 7 lines with 22 characters
  • 75 MHz 32-bit ARM920T processor
  • 256 KB RAM
  • 1 MB Flash ROM
  • Four AAA batteries, providing 50 hours of typical use, and one CR2032 battery
  • Piezoelectric beeper
  • Powered by battery or USB
  • Over 600 functions
  • HP part number F2223AA

  • HP Basic programming language
  • Write your own "aplets"
  • Compilation and decompilation of code built-in
  • Full access to all built-in commands, including branching, testing, graphics, matrices, statistics, input and output
  • Interactive history, notes, and sketch functions for aplets
  • Symbolic, numeric, and graphic views available to aplets
  • Built-in standard aplets: function, inference, parametric, polar, sequence, solve, finance, linear equation solver, triangle solver, statistics
  • Built-in teaching aplets: Quadratic Explorer, Trigonometry Explorer
  • Text editor (Notepad)
  • Graphics editing (Sketch)
  • Matrix editor
  • Finance (time value of money and amortization)
  • 2-D function, polar, parametric, sequences, histogram, box and whisker plot, scatter plot
  • Determine roots, intersections, slope, area, extrema
  • Zoom, trace, find coordinates, and shade plots
  • Plot multiple equations simultaneously
  • Table of values
Probability and Statistics
  • Σ x, Σ x2, Σ y, Σ y2, Σ xy
  • Sample standard deviation, population standard deviation, mean
  • Curve fitting (linear, logarithmic, exponential, and power regression)
  • Plot statistical data
  • Hypothesis tests
  • Confidence intervals
  • Combinations, permutations, factorials, random number generation
  • Upper-tail normal distribution, upper-tail chi-square distribution, upper-tail Snedecor's F-distribution, and upper-tail student's t distribution
  • Decimal hours/degrees to hours/degrees-minutes-seconds conversions
  • Angle conversions
  • Simple unit conversions
  • Constants library, with 29 common physical constants
  • Calculus, including derivatives, integrals, and Taylor polynomials
  • Matrices, including cross product, determinant, dot product, eigenvalues/eigenvectors, identity, inverse, LQ factorization, least squares, LU decomposition, QR factorization, reduced row echelon form, Schur decomposition, condition number, transposition, and more
  • Trigonometry, including hyperbolic and inverse sine, cosine and tangent
  • Solving, including a quadratic equation solver, a root finder, a triangle solver, the Solve aplet, and a simultaneous linear equations solver
  • Fractions, including modes for proper and improper fractions,
  • Decimal functions, finding the integer and fractional parts, the floor and ceiling, the mantissa and exponent, the sign, and rounding or truncating to a specified number of decimal places or significant figures
  • Lists, including calculating the sum, product, and differences, and sorting
  • Complex numbers
  • Summation
Software Library
  • Pre-loaded with twelve aplets, and many more HP-provided aplets available as separate downloads
  • Hundreds of third party aplets available for download
  • Compatible at the binary level with software written for the 39g+, 40gs, 39G, and 40G
  • Compatible at the source-code level with most software written for the 38G
Standardized Exam Support
  • AP Calculus
  • AP Statistics
  • AP Chemistry
  • AP Physics
  • SAT Reasoning Test
  • SAT Subject Tests in Mathematics Level 1 and Level 2
  • ACT Mathematics Test
  • PLAN
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