V-Graph Save

Staghorn Ridge Software生產應用2017-04-04

價格：免費

更新日期：2017-04-04

檔案大小：13.6 MB

目前版本：1.2

版本需求：需要 iOS 7.0 或以上版本。與 iPhone、iPad 及 iPod touch 相容。

支援語言：英語

V-Graph Save is a scientific graphing calculator for iPhone and iPad that is designed to solve real problems in engineering and science.

(V-Solve is a free app that has all of the features of V-Graph Save except for graphing and being able to save equations to the library. V-Solve has a demo feature which shows the graphing features of V-Graph Save for a select set of equations.)

Overview of Features

• Solves and plots explicit and implicit equations.

• Equations are entered and displayed in their natural form, as they would appear in a textbook.

• 59 categories of units in library, divided into english, metric, and SI systems.

• Equations, constants, and user-defined unit conversions can be saved into libraries.

• Well-organized Main, Trigonometric, English, and Greek keypads.

• Help screen overlay provides pop-up description of the function of key buttons.

• Tutorials provide demonstration of the calculator's capabilities by programmatically stepping through graphing, equation creation and saving to the library, and unit conversion examples.

Graphing

• Plots explicit and implicit equations.

• Up to 3 equations can be plotted simultaneously.

• Pinch and Pan capabilities.

• Linear, log, inverse, inverse for celsius, inverse for fahrenheit scales for both x and y axes.

• Cursor displays both the y-value and slope for each equation.

• Cursor can be controlled by a finger or by entering an exact x-value.

• Area under the curve and line segment length can be displayed for a specified x-value range for one equation.

• For two equations, the area between the curves and the line segment length for both curves are displayed.

Equation Creation and Display

• Equations are created and displayed in their natural form, as they would appear in a textbook.

• Number Mode allows equations based on y (dependent variable) and x (independent variable) to be quickly created, solved, plotted, and have unit conversions carried out on the dependent variable.

• Variable Mode allows equations with more complex variables to be created and saved to the equation library under user-defined categories.

• Up to 3 equations from the library can be plotted simultaneously.

• Super- and sub-scripting of variables.

• Functions include square root, squared, x to any power, log, ln, 10 to any power, e to any power, factorial, trigonometric (including inverse), hyperbolic (including inverse).

• Button selector allows the variable symbol or its value to be displayed in the equation.

• Previously used equations are maintained in memory and can be easily accessed.

Unit Conversions

• Unit conversions are made simultaneously, and are displayed as a table of all units of the same category.

• New units can be created and saved to the library, using the base units (m, s, g, ft, lb, etc).

• New units are easily created using picker dials for the metric prefix (k, M, G, etc), base units, and power of 1, 2, 3, etc.

Equation and Constant Libraries

• Equation library with categories of Algebra, Geometry, Physical Properties (Vapor Pressure), Heat Transfer, Statistics, and Electricity.

• Physics constant library.

• New Equations and Constants can be saved to libraries under user-defined categories.

• Equation library has a summary page for each equation, which includes a display of the equation, its variables in table format, and a detailed description.

Other Features

• E-mail contact.

• Memory stack maintains values, variable symbols, and equation names of an unlimited number of previous calculations.

• Multiple answers for implicit equations are saved to the memory stack.

• Period or comma can be used as decimal separator.