Solve2Go - supports solving equations and inequalities by means of conjectures based on visual thinking. Conjectures can be refuted or supported by examples provided by the tool, and should be proved using symbolic manipulations on paper.
Equations: when we want to know for which values of x the two functions are equal.
Inequalities: when we want to know for which values of x one function is greater than the other.
When the two functions involved are linear, we call the comparison a linear comparison. When at least one of the functions is not linear, we refer to a non-linear comparison. Non-linear comparisons form a wide and rich field of study.
Features
Users specify two function expressions by choosing each expression from a list of given parametric function expressions. Solve2Go randomly chooses numeric values for the parameters and graphs the two functions. It also marks points of intersection when they exist and are visible on screen.
To explore solutions of other equations or inequalities of the same (selected) type, it is recommended to use the interactive change of the constants and coefficients in each expression, transform the graphs, and view whether and how solutions are changing. The design of Solve2Go is based on the special features of Graph2Go.
Suggested Activities
Create a Gallery
Use Solve2Go to examine different common positions between a quadratic function and a linear function, and between two quadratic functions. How would you present a "gallery" of different comparisons to give a "visitor" a general picture of various possible types of comparisons?
Consider the following properties of comparisons:
* The type of functions compared (quadratic, linear, constant, increasing).
* The type of comparison (equation, inequality).
* The nature of the set of solutions (no solutions, a single solution, several solutions, an interval of solutions, several intervals of solutions).
For more investigations about solutions by means of function comparisons click here.
Calc4M Calc4M is a calculator for mobile phones. It is configurable and contains most of the normal functions such as trigonometric and logarithmic functions, conversions, constants, memories and binary and hexadecimal notation
MatrixGuy A small scale Matrix Calculator which computes determinants, inverses, adjoints and transpose of matrices
Total Calculator Calculate the whole expression in single step. Know how healthy you are with BMI calculator. It's Free
Graphical Scientific Calculator Graphical Scientific Calculator - This graphical scientific calculator is easy to use and calculates full equations in easily readable way like it is done in most of today`s advanced graphical calculators.
Editable multi-line interface shows also previous equations and their answers. This is great help in most calculation tasks
Mobile Math Mobile Math - MobileMath is a software written by using J2ME technolology. It turns mobile into calculator supporting many operations such as : evaluate expression, plotting, differentiate & integrate expression... It can run on any mobiles supporting Java.
MobileMath is claimed by the author to be Freeware and free to use
TouchMaths 10 TouchMaths is a revolutionary mathematical tool for mobile phones. The program is must-have for students, engineers and researchers. TouchMaths program includes many applications with many features. The famous TouchMaths is designed in order to fulfill the needs of everyone (student, engineer, researcher...)
TouchMaths 5 TouchMaths is a revolutionary mathematical tool for mobile phones. The program is must-have for students, engineers and researchers. TouchMaths program includes many applications with many features. The famous TouchMaths is designed in order to fulfill the needs of everyone (student, engineer, researcher...)
T-ouch screen Calculator Made with practicality in mind, Calculator is a simple and easy calculator app, ideal for your every. It is easy to use with large buttons, clean and stylish design, and provides the basic functionalities most people need for daily calculations
TouchMathPro TouchMathPro is a numerical computing environment and programming language for mobile devices with touchscreen. You can implement any numerical method using this program. MathPro is designed in order the user interact more efficiently
Other Software by developer «Math4Mobile»:
Fit2Go Fit2Go supports exploration and modeling activities. It supports data collection by proposing a model that can appropriately describe the user's data. The tool highlights the numeric aspects of a phenomenon. Together, Sketch2Go and Fit2Go provide a comprehensive view of models and modeling
Sketch2Go Sketch2Go - encourages visual exploration of phenomena by providing qualitative indication of the ways in which the sketch drawn by the user changes. The sketch is a diagrammatic representation that attempts to help the viewer focus on the principles rather than on tedious details of the represented phenomenon. Phenomenon can refer to processes outside of mathematics (e
Graph2Go Graph2Go - Graphing calculators are instrumental in teaching and learning mathematics. It is an environment that supports conceptual understanding of functions in general, and school algebra and real analysis in particular. Especially, it enhances connections between graphic and symbolic representations
Quad2Go Quad2Go - Explorations with Quad2Go are especially appropriate for 11-12 year old students. Teaching geometry to students of this age focuses on the critical attributes of quadrilaterals and on the hierarchical relations among them. Learning means identifying critical attributes and non-critical attributes
