Optimal Designs Enterprise - Software Products

CurvFit

CurvFit (tm) is a curve fitting program for Windows. Lorentzian, Sine, Exponential and Power series are available models to match your data. A Lorentzian series is highly recommended for real data especially for multiple peaked and/or valleys data. CurvFit is an example of Calculus programming... ie. minutes to solve, days or years to understand solution and what it implies (e.g. wrong model, sampling rate error, etc.). Helps learn 1) whether math model is good for given data; 2) convergence implies a reasonable solution; 3) how to select new starting initial parameter values. See comments in EX*.? files for ideas on how to converge via solvers. Equation Calculator and Hardcopy Plot prints are now (6/2005) available. This graphics software is listed under education teaching, training tools.

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FC-Win

FC-Win (tm) is a front-end program for Fortran Calculus (tm). The Fortran Calculus (FC) language is for math modeling, simulation, and optimization. FC is based on Automatic Differentiation that simplifies computer code to an absolute minimum; i.e., a mathematical model, constraints, and the objective (function) definition. Minimizing the amount of code allows the user to concentrate on the science or engineering problem at hand and not on the (numerical) process requirements to achieve an optimum solution. FC-Win has many (60+) example problems with output (see Demos) for viewing and getting ideas on solving your own problems. Please share this Calculus (level) Programming tool with your friends. Thanks! This development tools software is listed under business math, scientific tools.

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ODEcalc

ODEcalc for Windows: An Ordinary Differential Equation (ODE) Calculator! State your equation and boundary or initial value conditions and it solves your problem. Plots solution y and derivative ydot versus x. Solves most Boundary Value Problems (BVP) and Initial Value Problems (IVP) for Nth order ODE. ODE may be non-linear, implicit, and any order. Source code included ... it''s short! Great teaching tool! Helps students understand difference in BVP and IVP plus their importance in solving practical ODEs. ODE and algebraic system of equations may be solved using the methodology in this demo. Hardcopy prints in Windows is now available. This is a Fortran Calculus demo application. ODEcalc license is freeware and it is listed in education teaching, training tools software.

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Match n Freq

Pulse shaping filter program that finds the pole-zero locations of a transfer function, H(s), for a matched filter. H(s) equals a -desired- signal (Yout) divided by a given input signal (Yin). Both Yout and Yin are functions of frequency. Group delay may also be calculated to compliment a given data set, thus, providing a flat group delay. Minimizing Intersymbol Interference in a read/write channel for disc drives by shaping and slimming an isolated readback pulse was the main objective for writing this program. For more info, see Kost, R. and P. Brubaker; ''Arbitrary equalization with simple LC structures''; IEEE Transactions on Magnetics, Nov. 1981, pp 3346-3348 or visit http://www.digitalcalculus.com/page/785704. This is a Fortran Calculus demo application.business math, scientific tools shareware listed in business math, scientific tools section.

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