MobileMaths Lite is a set of mathematical and chemical applications for Mobile Phones and Tablets. MobileMaths program includes a lot of applications with a large of features. It is designed in order to fulfil the needs of every one(student, engineer, researcher... .). By using MobileMaths you can make your handset as home computer and will get substantially all of the computing capabilities desired by a large fraction of the public. All the calculations made by MobileMaths are accurate. MobileMaths includes the following powerful and improved tools:
1. Professional Programming Calculator:
Programming statements are mostly compatible with Matlab. Similar to the Matlab's command window.
2. Periodic Table:
3. Function Solver
4. Equation Solver:
Solve any equations from linear to more complex ones.
5. Interpolation Solver:
1-D Cubic spline interpolation of x/y-values at xi, interpolates to find yi.
6. Graph 2D Solver:
You can plot many curves in a single graph. You can also opening and saving your data.
7. Matrix Solver:
Inverse of matrix
Determinant of matrix
Linear system solver, A*x=b
• Solving a linear equation system of up to 20 unknowns
• Flexible data entry
• Opening and saving data
8. Curve Fitting (Regression) Solver:
Non linear fitting tool enables you to perform curve fitting of one- dimensional data using arbitrary (non linear) fitting functions by computing the coefficients or parameters. The tool is based on Nelder-Mead method, which performs an unconstrained nonlinear minimization of the sum of squared residuals with respect to the various parameters. The tool is unique in its kind available for mobile phones and tablets.
Polynomial regression finds the coefficients of a polynomial p(x) of degree n that best fits the data in a least-squares sense.
Multiple linear regression attempts to model the relationship between two or more explanatory variables and a response variable by fitting a linear equation to observed data.
9. Derivatives Solver
10. Tool for simplifying expressions
11.Tool for solving systems of nonlinear equations of several variables
12. Definite Integral Solver
13. Indefinite Integral Solver
14. Triangle Solver
15. Titration Solver
16. Molecular Weight Solver
17. Programming Language MathPro:
18. Taylor Series Calculator
19. Unit Converter
20. Distillation Solver
21. Solubility Solver
22. and much more...
MobileMaths has many features that are unique by their kind available for Android Phones and Tablets.
Supported languages included:
For more information please visit the website: http://www.mobile-sciences.com
Discounter is an application that performs analyses necessary in Delay Discounting research. This application is an open-source project developed in the hope that this type of methodology becomes more accessible to researchers, faculty, and students in the behavioral sciences. This application will determine discounting constants (k/s/etc.) and the area under the curve (AUC).
This application expands current research methods, providing a much more robust analysis of the AUC. In many applications of delayed discounting, the area under the curve was calculated using as few as several intervals using the trapezoid method. This application provides a simple interface which performs up to thousands of intervals. R2/VAC and other statistical analyses are also included with each model as well.
In order to use this application, you should prepare 1) your maximum value (big V), 2) the total number of values/delays you'll be entering (n), 3) your already derived indifference points (subjective values), and 4) your delay points (1 day = 1, 1 month = 30, 2 months = 60, and so on). After you have those values, enter them into the calculator. When the calculator is filled, it will prompt your to cook up those numbers. The application will then perform non-linear least squares regressions constrained to a hyperbolic function to determine k and a visual display of how our k-curve fits the points supplied.
This calculator provides the only two estimates of AUC (for now). The first method is performed exactly as developed by Myerson et al., 1997. In addition to this calculation, Discounter will perform expanded analyses through numerical integration. This calculation (Gilroy-Hantula AUC) provides an easily accessible way to optimally determine the area underneath of a discounting curve in ways that were previously unavailable.
For those of you who have feedback, feel free to email at the link below. For those of you who can offer stylistic or other programmatic features, feel free to fork the source or commit additional features.