LTspice IV is a powerful SPICE simulator, schematic capture and waveform viewer with features and models to make simulating switching regulators faster. The free version includes a full working LTspice IV, Linear Technology macro models, more than 200 op amp models, resistor models, transistor models, and MOSFET models.
Mall Creeps
3D CAD tool for creating architectural elements, exporting to multiple formats, and featuring 3D interactive engine in Italian and English.
Model used to analyze sewage networks and simulate surface/subsurface hydrology.
topCAD program is an easy-to-use multifunctional tools.
Use for home design, remodeling, interior design, outdoor living.
Collection of tools to measure, convert & analyze colors.
Flymaster Designer lets users design and manage instrument screens, and upload layouts.
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