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Sketchpad ran on the MIT Lincoln Laboratory TX-2 (1958) computer at the Massachusetts Institute of Technology (MIT), which had 64k of 36-bit words.The user drew on the computer monitor screen with the recently invented light pen, which relayed information on its position by computing at what time the light from the scanning cathode-ray tube screen is detected.
The Geometer's Sketchpad is a commercial interactive geometry software program for exploring Euclidean geometry, algebra, calculus, and other areas of mathematics. It was created as part of the NSF -funded Visual Geometry Project led by Eugene Klotz and Doris Schattschneider from 1986 to 1991 at Swarthmore College . [ 1 ]
Live Geometry is a free CodePlex project that lets you create interactive ruler and compass constructions and experiment with them. It is written in Silverlight 4 and C# 4.0 (Visual Studio 2010). The core engine is a flexible and extensible framework that allows easy addition of new figure types and features.
Sketchbook features a radial/pie-menu user interface and has painting and drawing tools such as pencils, markers, and brushes.It uses pressure-sensitive features of digital drawing pads, tablet computers, and smartphones to create effects similar to traditional materials.
OpenVSP Ground School is a set of comprehensive tutorials under development by Brandon Litherland at NASA. Ground school tutorials provide details on OpenVSP features and techniques, along with tutorials for beginner and advanced users, and are hosted on the Langley Research Center website.
SketchUp is a 3D modeling software that is used to create and manipulate 3D models. It is used in architecture and interior design.. SketchUp is owned by Trimble Inc. The software has a free web-based version, and three paid subscriptions to gain access to applications for Windows and macOS.
Jesus and the Adulteress, a sketched figure composition by Rembrandt Charcoal sketch of willows by Thomas Gainsborough. A sketch (ultimately from Greek σχέδιος – schedios, "done extempore" [1] [2] [3]) is a rapidly executed freehand drawing that is not usually intended as a finished work. [4]