XCircuit is software for drawing publishable-quality electrical circuit schematic diagrams and related figures.
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XCircuit is software for drawing publishable-quality electrical circuit schematic diagrams and related figures.
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Xschem is a schematic editor for VLSI/Asic/Analog custom designs, netlist backends for VHDL, Spice and Verilog.
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Qucs supports all kinds of circuit simulation types e.g. DC, AC, S-parameter and harmonic balance analysis.
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Digital is an easy-to-use digital logic designer and circuit simulator designed for educational purposes.
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Qucs-S was forked from the Qucs cross-platform circuit simulator in 2017. āSā letter indicates SPICE.
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logisim-evolution is educational software for designing and simulating digital logic circuits.
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Stellarium is a software project that allows people to use their home computer as a virtual planetarium.
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AstroImageJ (AIJ) is a simple and powerful tool for astronomical image analysis and precise photometry.
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SkyChart is software that lets users draw sky charts, making use of the data in 16 catalogs of stars and nebulae.
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KStars is free, open source, cross-platform Astronomy Software by KDE. It provides an accurate graphical simulation of the night sky.
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