Ernest Brock

  • Category: Education
  • Release Date:
  • Current Version: 1.6
  • Adult Rating: 4+
  • File Size: 13.58 MB
  • Developer: Ernest Brock
  • Compatibility: IOS 6.0 or later.
App Ranking: 4.5
From 305 Ratings

GraphNCalc83 App Description & Overview

GraphNCalc83 is a modern version of the classic graphing calculator. The familiar calculator keyboard, arrow keys and functions are enhanced with full touch input for all graphs, editors and menus. Trace graphs with your finger. Zoom in and out with a pinch. Explore regressions with a tap on the screen. Scroll through the list, matrix and calculation history with a swipe. Tap the ? key for help. Written in objective-C using LAPACK, BLAS, vDSP and the latest 64 bit math libraries, GraphNCalc83 harnesses the amazing computing resources of the iPhone and iPad to provide a colorful, fast and fluid experience. Graphs scroll, glide and zoom smoothly. Matrix, statistics and BASIC programs run 500x times faster than traditional calculators. GraphNCalc83 includes: Algebraic entry: Enter problems using full algebraic notation. The command line editor includes interactive parenthesis matching and high lighting, undo and redo, bubble function help and a 200 level calculation history and recall stack. Generate a PDF report of calculations for mailing or printing using the SEND function. Math functions: Trigonometry, logarithms, function minimum, maximum, numeric integration and derivatives, general solver, real and imaginary numbers, combination, permutation, random number generation, normal, T, chi squared, Fisher, poisson and geometric distributions, binary shift and rotate, test and logic operations, list operations including sort, std. deviation, sum, sequence, matrix determinant, transpose, sum, ref, rref, addition, multiplication. Graph functions, parametric and polar equations and statistics plots: Full color graphs with touch to trace, pinch zoom, function minimum, maximum, intersections, asymptotes and numeric integration. All graphs can be output as a high resolution PDF file for mailing or printing. Interactively explore function behavior using variables tied to slider bars. Statistics, Inferential Statistics and Distributions: A set of inferential statistics worksheets and graphs of distributions are included. The regression analysis screen allows you to quickly compute, view and analyze a data set using a variety of curve fitting methods. Table: Analyze functions using the table viewer. Use the split screen mode to simultaneously view a graph and table. Matrix and Lists: Matrix and list editors and a full set of matrix and list operations are built in. Unit Converter and Constants: Convert between a wide variety of scientific, engineering and common units. A large set of physical constants are also included. BASIC programming: Create, edit, debug and run BASIC programs. An interactive debugging screen allows you to set break points, single step and view program variables. Programs run more than 500 times faster than traditional calculators. Import and execute .83p and .8xp files. Chemistry: The calculator includes a full featured periodic table, a mass calculator and a data base of element properties. The touch interface allows you to view and interact with the periodic table to view by series, state, melting point, boiling point, electronegativity, electron affinity, valence, ionization, radius, hardness, modulus, density, conductivity, heat and year discovered. Geometry: The geometry application computes perimeter and area for a variety of 2d geometric figures including squares, rectangles, parallelograms, triangles, polygons, circles, arcs and ellipses. A full triangle solver and interactive unit circle grapher are built in. Solve line intersections, project a point to a line and find a circle given 3 points. Finance: Compute time value of money problems including annuities, lump sums and uneven cash flow analysis with IRR and NPV Built-in user guide: A user guide is included and is a touch away using the ? key or ⓘ on any menu. All functions have a full manual page with description of arguments and examples of use. Pop up bubble help displays function arguments during problem entry and program editing.
•Added inequality function graphing •Added dot mode for seq graphing •Corrected auto entry •Improved help screen formatting •Keyboard sound preference is now saved •regEqu generation for small coefficients improved •Improved rref( •Fixed labels in triangle app

GraphNCalc83 App Tips & Tricks

GraphNCalc83 Screenshots

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GraphNCalc83 Video

GraphNCalc83 Comments

GraphNCalc83 Reviews

  • Worth It

    By Lentilson
    I don't write reviews often but this app deserves one! Literally this is my most used app. I only wish there was a way to make this the default calculator on iOS, but that's an Apple problem. I love this app! Big thank you to the developer!
  • I don't normally write reviews

    By bedj2
    I am studying to become a physics major at SJSU and can gladly report that this app is very useful. When I comes to graphing multiple equations, the app does a beautiful job of 'integrating' touch display features like zoom and toggle with ti-83 capabilities. This is a good buy if you in the neighborhood of a good calculator
  • Math Prof says : SUPERB TI-8x emulator for iPad and iPhone

    By carlperez54
    I am a longtime math teacher who loves this app. As other reviewers have said, it is better...much better...than any of the TI-8x models on which it is based. Easier to use..better display...better graphing...better! Texas Instruments keeps trying to get us to upgrade to more expen$ive calculators with increasingly needless and unuseful "features". Why? This app turns your iPad/iPhone into a super-TI-8x about 7% of the price! If you like and use the TI-83/84 models, this app is highly recommended.
  • Perfect

    By bakoolguy2
    One of a kind.

    By KindSoul60
    totally worth what i paid for. Great app
  • Great App

    By Billy Jimmy Jones
    This is a great app it's faster and less complicated than the real thing
  • I Work in finance and use this every day

    By Quwttja
    Hands down the best calculator app I have. Use this every day for things that don't require excel/need rough calcs on the fly. Has all functionality of ti83 including the programming features. Great app.
  • Awesome

    By owndao
    I have been looking for a truly powerful calculator for a long time. I've tried variations of the HP top of the line and several were very nice but as I said in one of the other reviews that calculator emulators are great for what they are but the idea is to serve your needs. If a calculator still retains all of the disadvantages of the original then it is not an advancement. This calculator not only provides all the capabilities of the HP that inspired it but also eliminates many of the physical calculator's cons. Ever had a calculator that did everything you needed and more but required a book and a lot of memory work to do any of the sophisticated things? This one does not have that drawback. There is context based help available at the touch of a button. Now you can actually use the full power of the calculator without it becoming a research project. To me, that essentially made the more advanced the calculator the less useful it became. Not so here. I applaud the developer. We don't need exact replicas of calculators, we need something to do a job with the least effort on our part. This is a giant step in that direction. Calculators are not sacred but my time is. Get this. You won't regret it. Now I can get on with my work!
  • THE BEST TI graphing calculator replacement I've seen in the store

    By guard001
    Excellent work by the developer! Please add to feature requests: the ability to import Flash Applications.
  • Love it

    By j_smiley
    This app got me through Linear Algebra. I lost my regular graphing calculator and found this app while taking an online linear algebra test! I ended up getting a 98% in the class thanks to this calculator app!! Great job!
  • Love this app

    By Ubajunk
    I love this app! As a teacher it is so helpful to quickly and visually demonstrate functions.
  • Great calculator!

    By kb-iphone
    I have been looking a long time for a TI-83 type calculator for my iPhone and iPad. This is perfect! Solid reliable app!