freeCAD with Motion
Simulation
Eagle (Layout Schematic Editor)
Smart Draw
NUMERICAL
COMPUTATION
GrADS (Grid Analysis
and Display System)
CIRCUIT
ANALYSIS
Design Simulation
and Device Models
SIGNAL
PROCESSING
Digital
Filter Analyzer
NuHertz (Filter Design)
Audio/Video
Processing
DIGITAL
CIRCUITS
Malachite
Digital Electronics Simulator
CONTROL
SYSTEMS
INSTRUMENTS
Digital
Signal Generator
Dual
Trace
Oscilloscope
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