Optimal Designs Enterprise - Software Products

SpectrumSolvers

Which estimator is best for your job? Helps Find best Spectral Estimation Method for a Power Spectral Density plot. A menu of 10+ spectral estimators from Steve Kay's textbook 'Modern Spectral Estimation' 1988 is available to choose from. The results differ dramatically from one estimator to another. Plus, varying input parameters and/or number of points may provide discrepancies. Observe how zero padding effects your results. Manufacturing companies take note! Some estimators can detect signals 50 to 100 dB from main signal. See documented example! The unwritten rule of '30 dB is okay' (i.e. hidden) is no longer true. business math, scientific tools freeware listed in business math, scientific tools section.

Keywords: power spectra psd spectral estimation spectral analysis spectrum fourier transform fft minutes and seconds

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 is a freeware categorized under education teaching, training tools tools.

Keywords: ode calculator ode calculator differential equations science engineering teaching ordinary differential equations ordinary differential equation calculator differential equation calculator calculus programming infrared photos

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.

Keywords: math modeling simulation optimization engineering teaching calculus programming fortran calculus language postal addresses

Heat Transfer

A Heat Transfer physics problem is described with equations and shows a Calculus-level language used for solving this two point boundary value problem (BVP). The equations being solved may be ordinary differential equations and/or partial differential equations of any order & degree. Equations maybe nonLinear, implicit, any order, any degree and/or constrained. Automatic Differentiation (visit http://www.digitalCalculus.com/page/593538) coupled with Operator Overloading are the key ingredience for a Calculus-level programming language. Our website introduces the Fortran Calculus language/compiler. The main point is simulating entire company processes, distribution systems, etc. with an eye on ones company goal. This is accomplished by nesting of simulation problems in one run. business math, scientific tools freeware listed in business math, scientific tools section.

Keywords: heat transfer boundary value problem bvp math modeling simulation optimization engineering teaching fortran calculus programming fortran calculus language fortran calculus compiler slow performance

Robot4

This software is a Robotic Arm Movement program where the arm is moved from a given position to a desired position. The program finds the angles necessary for the desired position. Problem came from NASA. Robot4 is an Inverse Problem example. It wants to solve how to move from starting point 'A' to target point 'B'. Solutions to Inverse Problems are easy with Calculus programming language. See file 'Rob4User.fc' for solution code. This is an improved productivity example do to using Calculus programming. This is a freeware listed under education mathematics category.

Keywords: inverse problem robotics mathematical modeling engineering teaching calculus fortran calculus programming fortran calculus language fortran calculus compiler mp3 conversion

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. Match n Freq license is shareware and it is listed in business math, scientific tools software.

Keywords: matched filter pulse slimming pulse shaping intersymbol interference optimization fortran calculus programming fortran calculus language fortran calculus compiler dwg format

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. education teaching, training tools freeware listed in education teaching, training tools section.

Keywords: curve fitting data fitting math modeling sine series lorentzian series exponential series power series equation calculator calculus programming space manager