V-Solve has all of the features of V-Graph Save, except for graphing and the ability 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 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. • 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 equation creation and unit conversion examples. 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, and have unit conversions carried out on the dependent variable. • Variable Mode allows equations with more complex variables to be created: • Unit conversions can be carried out on result. • Super- and subscripting 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 re-accessed by means of a drop-down selection window. 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. Constant Libraries • Physics constant library. Constants can be saved to libraries under user-defined categories. Other Features • E-mail contact is accessed through a button provided in the Help/Tutorial screens. • Memory stack maintains values, variable symbols, and equation names of an unlimited number of previous calculations, which can be easily accessed for future calculations. • Multiple answers for implicit equations are saved to the memory stack. • Period or comma can be used as decimal separator. • Degrees or radians for trigonometric functions. • Decimal or Scientific Notation, and number of significant digits can be easily specified. Convergence criteria and maximum number of iterations can be specified for implicit equations. • No advertisements