GraphNCalc83 3.2

GraphNCalc83 is a powerful math app that combines touch, color, and lightning-fast speed to tackle all your math problems. With its intuitive calculator keyboard, arrow keys, and enhanced touch input, this app offers a seamless experience across graphs, editors, and menus. You can enter calculations in natural textbook format and view fractions as results. The touch functionality allows you to trace graphs with your finger, zoom in and out with a simple pinch, and explore regressions with a tap. It's incredibly user-friendly to scroll through the list, matrix, and calculation history with a single swipe. Additionally, the app features a help option for any questions or uncertainties you may have.

GraphNCalc83 was developed using the latest 64-bit math libraries, making use of the iPhone and iPad's impressive computing resources. As a result, the app delivers a vibrant, fast, and fluid experience. Graphs scroll, glide, and zoom smoothly, while matrix operations, statistics functions, and BASIC programs run up to 500 times faster compared to traditional calculators.

Here are some of the key features included in GraphNCalc83:

• Algebraic entry: Input problems using full algebraic textbook notation, complete with interactive parenthesis matching, highlighting, undo/redo functionality, bubble function help, and a 200 level calculation history and recall stack. You can also generate PDF reports for mailing or printing.
• Math functions: The app offers an extensive range of math functions such as trigonometry, logarithms, numeric integration and derivatives, real and imaginary numbers, combinations and permutations, random number generation, statistical distributions (e.g., normal distribution), binary shift and rotate operations.
• Graph functions: You can plot various types of graphs including parametric, f(x,y) and polar equations, as well as statistical plots. The graphs are displayed in full color and offer interactive features like touch-to-trace, pinch zoom, function investigation (minima, maxima, asymptotes), and numeric integration. The app also allows you to output high-resolution PDF versions of the graphs.
• Statistics and Distributions: GraphNCalc83 provides inferential statistics worksheets and distribution graphs. You can use the regression analysis screen to compute, view, and analyze data sets using different curve fitting methods.
• Table: The table viewer enables you to analyze functions effectively. You can use the split-screen mode to simultaneously view a graph and its corresponding table.
• Matrix and Lists: The app includes a feature-rich matrix and list editor with a comprehensive set of related operations.
• Unit Converter and Constants: You can convert between a wide range of scientific, engineering, and common units using the built-in unit converter. It also features a substantial collection of physical constants.
• BASIC programming: GraphNCalc83 allows you to create, edit, debug, and run BASIC programs. Programs run more than 500 times faster compared to traditional calculators. It supports importing and executing .83p and .8xp files.
• Chemistry: This application includes a complete periodic table with interactive features. You can view element properties by series, state, melting point, boiling point, electronegativity, electron affinity, valence, ionization, radius, hardness, modulus, density, conductivity, heat capacity, and year of discovery.
• Geometry: The app offers a geometry calculator that can compute the perimeter and area of various 2D geometric figures, such as squares, rectangles, parallelograms, triangles, polygons, circles, arcs, and ellipses. It also includes a triangle solver and an interactive unit circle grapher. Additionally, you can solve line intersections, project a point to a line, and find a circle given three points.
• Finance: You can use the app to compute time value of money problems, including annuities, lump sums, and uneven cash flow analysis using IRR (Internal Rate of Return) and NPV (Net Present Value).
• Built-in user guide: GraphNCalc83 provides a comprehensive user guide accessible through the "?" key or the ⓘ on any menu. You can find detailed descriptions of all functions, their arguments, and examples of usage. The app also offers pop-up bubble help that displays function arguments during problem entry and program editing.