DataFitting program performs statistical regression analysis to estimate the values of parameters for linear, multivariate, polynomial, exponential and nonlinear functions. The regression analysis determines the values of the parameters that cause the function to best fit the observed data that you provide. This process is also called curve fitting.DataFitting gives engineers and researchers the power to find the ideal model for even the most complex data, by putting a large number of equations at their fingertips. DataFittings built-in library includes a wide array of linear and nonlinear models from simple linear equations to high order polynomials. DataFitting has the following capabilities: A 38-digit precision math emulator for properly fitting high order polynomials and rationals. A robust fitting capability for nonlinear fitting that effectively copes with outliers and a wide dynamic Y data range. Once your data have been fit, DataFitting automatically sorts and plots the fitted equations by the
Genre: How-to
by: larrynylund
CurveFitter is a powerful statistical analysis program that performs linear and nonlinear regression analysis (i.e. curve fitting). CurveFitter determines the values of parameters for an equation, whose form you specify, that cause the equation to best fit a set of data values. CurveFitter can handle linear, polynomial, exponential, and general nonlinear functions. Unlike many nonlinear regression programs that can only handle a limited set of function forms, CurveFitter can handle essentially any function whose form you can specify algebraically. CurveFitter performs true nonlinear regression analysis, it does not transform the function into a linear form. As a result, it can handle functions that are impossible to linearize such as (Newtons Law of Cooling): y = (a - c) * exp(-b * x) c Another advantage of handing the function in true nonlinear form is that the minimization of the sum of squared residual values (i.e., least squares) is based on the true nonlinear value rather than some lineari
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Genre: Entertainment
by: vanrichter
Graph plotter program plots 2D graphs from complex equations. The application comprises algebraic, trigonometric, hyperbolic and transcendental functions. EqPlot can be used to verify the results of nonlinear regression analysis program.Equation graph plotter gives engineers and researchers the power to graphically review equations, by putting a large number of equations at their fingertips. The program is also indispensable for students and teachers.A flexible work area lets you type in your equations directly. It is as simple as a regular text editor. Annotate, edit and repeat your graphings in the work area. You can also paste your equations into the editor panel.Example of mathematical expression: 5.22 - (2 * x) square(x) power(x;3) power(2.55;4) - logbaseN(4;6.25) Save your work for later use into a text or graphic file. Comprehensive online help is easily accessed within the program. Features:--------*Scientific graphings*Unlimited expression length*Parenthesis compatible*Scientific
