Removed zeros from Add expressions
Removed unreachable code
Added NSolve tests with algebraic solutions
Added summary of test results
Fixed un-substituted string format parameters
Added test circuit filtered diode clipper with amplifier and load
More user friendly exceptions
Added validation to Build
Removed linear solutions to handle mixed systems correctly
Removed analytical solutions, just solve whole system numerically
Added enumerator for vectors, added Row/Column functions
More accurate divergence exception
Refactored Schematic control class
Reduced dependencies on SchematicEditor
Added space after type token
Added more colors
Major refactoring...

- Simulation moved to a new modal window
- Schematic refactored into SchematicControl, SchematicEditor, and
SimulationSchematic