Convert DWG/DXF to different versions
A9Convert is a command line program to convert DWG/DXF to different versions of DWG/DXF.
DXF, DWG, DWF, DXB, PDF Convert, View and Print
CAD File Converter's main purpose is to find its way among the various formats and versions of documents generated by Autodesk's AutoCad and by numerous other programs using DXF, DWG, DWF, DXB and PDF formats.
CalcPad is a professional software for mathematical and engineering calculations. It represents a flexible and modern programmable calculator.
Civil Engineering Calculations
This program was designed to provide Civil Engineers and Land Surveyors with a quick way to calculate or check points on portions of a roadway profile, area calculations, drainage/flow calculations, traffic counts, etc.
Convert between many different units and measurements, including area, density, energy, flow rate, force, velocity, viscosity, volume & more.
Converts printed data to numerical data
Software to digitize data from graphs for Engineering design calculations and analysis.
Architectural Surveys, Mapping and Photogrammetry.
DigiCad 3D is an excellent tool for dealing with images, drawings, photographs of building, regular or irregular surfaces and maps.
A light CAD viewer for fast, precisely and conveniently opening CAD files.
DWG FastView is a cross-platform CAD software that meets designers demands in all kinds of situation, and fully compatible with AutoCAD.
A lite and fast dwg viewer, browse, view, measure, print DWG, DXF, DWF files. Supports AutoCAD drawing format from R2. 5 to the latest version 2013.
EngiLab Units is an easy-to-use yet powerful unit conversion tool for Windows.
Civil / Structural Engineering
Civil / Structural engineering app that bundles information for the construction industry.
Open-source numerical software package
Euler is a free and open-source numerical software package.
Open Source Numerical Computing Environment
FreeMat is a free open source numerical computing environment and programming language, similar to MATLAB and GNU Octave.
Mathematics Tool and the GEL Language
Genius is a free open source numerical computing environment and programming language, similar in some aspects to MATLAB, GNU Octave, Mathematica and Maple.
Plot Structural Geology Rose Diagram & Polar Area Diagram
GeoRose is a program plotting rose diagram used in structural geology area.
Thematic Maps & Spatial Analysis
MapViewer is an affordable mapping and spatial analysis tool that allows you to easily produce publication-quality thematic maps
Solving & Analyzing Engineering Calculations
PTC Mathcad is the industry standard software for solving, analyzing, and sharing your most vital engineering calculations.
Maxima is a system for the manipulation of symbolic and numerical expressions, including differentiation, integration, Taylor series, Laplace transforms, ordinary differential equations, systems of linear equations, polynomials, and sets, lists, vectors, matrices, and tensors.
Multifunctional Curve Fitting Application
Regression analysis is a multifunctional curve fitting application provided free of charge.
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i don't see the guide to direct us how to enter data...
Features such as inverse, intersections (distance-distance, Bearing-distance, bearing-bearing), stake-out, inverse area, offsets, curve inverse would be great....