Math & Scientific Tools Shareware / Freeware
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3D Grapher
3D Grapher is a feature-rich yet easy-to-use graph plotting and data visualization software suitable for students, engineers and everybody who needs to work with 2D and 3D graphs. With 3D Grapher you can easily plot the equation and table-based graphs, zoom them, rotate, view at any angle and even animate. You can draw the unlimited number of graphs in one coordinate system to visualize and analyze the domains of functions and their intercepts.
AcaStat
The perfect tool for quick analysis of data whether you enter it yourself, use a spreadsheet, or maintain a database. Easily create and analyze crosstabulations, descriptive statistics, basic significance tests, and summary reports. Ideal for those who need a low-cost alternative for producing basic summary statistics at school or work. Create data files or import from spreadsheets or statistical software.
BibTexMng
BibTexMng is a program for manipulating BibTeX database files. These files contain all the relevant data, and sometimes additional information such as abstracts and keywords, but do not specify the final format in which this data will be presented. The data is organized into records, in which each record is identified by a unique key or label.
BibTexMng is a very easy to use product of bibliographic software for Windows.
CASC concentration calculator
CASC helps calculate recipes for solution preparation regardles of number of compounds used. Built in concentration calculator converts concentrations automatically taking density changes into account thanks to built in database of substances. Solution mixer helps in calculations involving three solutions - two mixed and the resulting one. CASC will help solve almost any solution question you may find in your textbook.
Chemical Reagent Calculator
CHEMICAL REAGENT CALCULATOR is a useful tool to assist technicians and laboratory staff who needs to prepare chemical solutions and reagents. The program uses built in atomic weights in calculating the procedure for preparing Molar solutions, as well as Anhydrous and Hydrate solutions. Calculating percentage solutions is also included. The program allows the user to print out instructions as well as a label to fix to the preparation.
ComfortAir HVAC Software
ComfortAir HVAC software is designed to be used by engineers, architects, contractors and energy auditors to calculate and analyse heating and air conditioning hourly loads in all types of buildings. Input and output units can be set independently to English or Metric units. The program contains weather and other necessary data for 1,989 cities and localities in 163 countries, thus making it applicable for virtually any location in the world.
Cresotech Convert-It
Cresotech Convert-It gives you the option to use a single tool to convert almost anything into anything. It is always at your disposal - just reach your Pocket PC, run Convert-It and change all strange and unfamiliar measuring system units into something you used to. Do not refer to thick folios; do not spent your time and money searching for answers over the web - get all what you need in one touch and split seconds from your Pocket PC!
CYTSoft Psychrometric Chart
A must have for HVAC engineers! This is an interactive and intelligent psychrometric chart program for thermodynamics-related industries, especially HVAC. It helps engineers solve problems involving moist air as quickly and as precisely as possible.
This product is the #1 psychrometric chart program that has the ability to draw directly and precisely on screen with mouse (just like some CAD software) and switch the view quickly at any time.
Data Master 2003
Programmable scientific and technical graphics optimized for automation of test and measurement systems, data acquisition and post-process. You can visualize, edit and analyze data produced by any instruments with RS-232 interface or another numerical data sources. Features include extensible set of numeric and symbolic calculation tools, nonlinear Levenberg-Marquardt regression analysis, ActiveX-compatible scripting environment and more.
DataFit
DataFit is a tool used to perform nonlinear regression (curve fitting), statistical analysis & data plotting. Fit equations with up to 100 parameters to data with up to 20 independent variables. Define your own equations or choose from over 600 pre-defined equations. Results include customizable 2D/3D plots, as well as detailed fit information. Export code in BASIC or C to use an equation in a user written program. Easy to learn and use.
DreamCalc Graphing Calculator
DreamCalc (DC3G Graphing Edition) is a software application which provides a fully featured and convenient alternative to using a separate hand-held graphing calculator when you are working on your PC. Because it is software, it runs alongside your other applications, allowing you to copy values, lists, expressions and graphs.
DTREG
DTREG is a powerful statistical analysis program that generates classification and regression decision trees that model data and can be used to predict values. Single-tree, TreeBoost and Decision tree Models can be created.
EasyFit
EasyFit is a distribution fitting software for Windows. It provides a complete set of features allowing to fit probability distributions to your data, analyze the results and select the most adequate and accurate model. EasyFit supports 13 classical (Gamma, Exponential, Normal, Lognormal, Weibull etc.) and 3 advanced distributions. Basic statistics, goodness of fit tests, and high-quality graphs (PDF, CDF, Survival etc.) are supported as well.
Electrist
The Top-Rated Electronic & Electrical Engineering Tool for Palm OS The most complete set of hundreds of calculations including: Integrated Ohm's Law/Watt's Law, Resistor Color Code, Series/Parallel Resistance/Inductance/Capacitance, Voltage/Current Dividers, Capacitive/Inductive Reactance, Impedance, Sine Wave Conversion, Delta/Wye, Decibels, VSWR, AWG/Metric/Custom Conductor Voltage Drop, Conductor Size Selection, Load calculator and much more
Engineering Power Tools
ENGINEERING POWER TOOLS is powerful productivity software for professional engineers. Over 70 programs and data tables are integrated into one package. The programs solve a wide variety of common engineering problems quickly and easily. Eliminates wasted time, hunting for the right formula and performing repetative manual calculations. Categories include Math, HVAC, Mechanical, Electrical, Materials, and Structural. Easy to use. Networkable.
ESBPDF Analysis
ESBPDF Analysis provides everything needed for using Discrete and Continuous Probability Distributions in a single Windows application, handling all the Probability Combinations for you. Features include Binomial, Poisson, Normal, Exponential, Student t, Chi Squared, F, Beta and Lognormal Distributions; Inverses of Normal, Student t, Chi Squared, F, Beta and Lognormal Distributions; Lists of Binomial Coefficients and Permutations plus more
FEAview
FEAView is a finite element modeler and post-processor for structures problems using MSC. Nastran. It supports all the elements, properties, materials, and loads commonly used in structures problems. It is rich in graphics and transforms the model and solver results data into readily comprehensible 3D displays and tabular charts. Version 1.5.x fixes all known drawing and meshing problems.
FindGraph
FindGraph is comprehensive, feature-rich graph editor, as well as a curve fitting and digitizing tool for engineers, scientists and graduate students. Convert plots back to X,Y data from any published report for later processing and manipulations. The program offers 12 generic fits, including Linear Regression, Logistic Functions, Fourier approximation, Neural Networks, B-splines curves, plus a library of over 300 industry-specific formulas.
GIPALS - Linear Programming Environment
Linear programming environment that incorporates large-scale linear programs solver and easy, intuitive graphical user interface to specify, import and solve any type of constrained optimization problems arising in various industrial, financial and educational areas. Optimization problems are stated as linear programs with UNLIMITED number of decision variables and constraints.
LITIO - 3D Sheet metal unfolding software
LITIO is a sheet metal program that calculates flat (unfolded) sheet metal developments of ducts, rectangle to round transitions, cylinders, cones, pipe intersections, connections, bifurcations, elbows, etc.
For HVAC, hoppers, cyclones, dust extraction, ducts, conveying systems, silos, piping, etc.
To draw your sheet metal developments directly in AutoCAD R2000 and later (no need of DXF convertions).
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