Contents

• Chapter 1  Introduction
  • 1.1  What is it?
  • 1.2  Starting
  • 1.3  How to use this manual
  • 1.4  Command structure
  • 1.5  Standard options
  • 1.6  Getting help, and the Gnucap user community
  • 1.7  How to contribute
  • 1.8  Licensing
• Chapter 2  Command descriptions
  • 2.1  Command Summary
  • 2.2  ! command
  • 2.3  < command
  • 2.4  > command
  • 2.5  AC command
  • 2.6  ALARM command
  • 2.7  ALTER command
  • 2.8  BUILD command
  • 2.9  CHDIR command
  • 2.10  CLEAR command
  • 2.11  DC command
  • 2.12  DELETE command
  • 2.13  DISTO command
  • 2.14  EDIT command
  • 2.15  END command
  • 2.16  EXIT command
  • 2.17  FANOUT command
  • 2.18  FAULT command
  • 2.19  FOURIER command
  • 2.20  GENERATOR command
  • 2.21  GET command
  • 2.22  IC command
  • 2.23  INSERT command
  • 2.24  LIST command
  • 2.25  LOG command
  • 2.26  MARK command
  • 2.27  MERGE command
  • 2.28  MODIFY command
  • 2.29  NODESET command
  • 2.30  NOISE command
  • 2.31  OP command
  • 2.32  OPTIONS command
  • 2.33  PAUSE command
  • 2.34  PLOT command
  • 2.35  PRINT command
  • 2.36  QUIT command
  • 2.37  SAVE command
  • 2.38  SENS command
  • 2.39  STATUS command
  • 2.40  SWEEP command
  • 2.41  TEMP command
  • 2.42  TF command
  • 2.43  TITLE command
  • 2.44  TRANSIENT command
  • 2.45  UNFAULT command
  • 2.46  UNMARK command
  • 2.47  WIDTH command
• Chapter 3  Circuit description
  • 3.1  Summary
  • 3.2  C: Capacitor
  • 3.3  Trans-capacitor
  • 3.4  D: Diode
  • 3.5  E: Voltage Controlled Voltage Source
  • 3.6  F: Current Controlled Current Source
  • 3.7  G: Voltage Controlled Current Source
  • 3.8  Voltage Controlled Capacitor
  • 3.9  Voltage Controlled Admittance
  • 3.10  Voltage Controlled Resistor
  • 3.11  H: Current Controlled Voltage Source
  • 3.12  I: Independent Current Source
  • 3.13  J: Junction Field-Effect Transistor
  • 3.14  K: Coupled (Mutual) Inductors
  • 3.15  L: Inductor
  • 3.16  M: MOSFET
  • 3.17  Q: Bipolar Junction Transistor
  • 3.18  R: Resistor
  • 3.19  S: Voltage Controlled Switch
  • 3.20  T: Transmission Line
  • 3.21  U: Logic Device
  • 3.22  V: Independent Voltage Source
  • 3.23  W: Current Controlled Switch
  • 3.24  X: Subcircuit Call
  • 3.25  Y: Admittance
• Chapter 4  Behavioral modeling
  • 4.1  Conditionals
  • 4.2  Functions
  • 4.3  COMPLEX: Complex value
  • 4.4  EXP: Exponential time dependent value
  • 4.5  FIT: Fit a curve
  • 4.6  GENERATOR: Signal Generator time dependent value
  • 4.7  POLY: Polynomial nonlinear transfer function
  • 4.8  POSY: Polynomial with non-integer powers
  • 4.9  PULSE: Pulsed time dependent value
  • 4.10  PWL: Piecewise linear function
  • 4.11  SFFM: Frequency Modulation time dependent value
  • 4.12  SIN: Sinusoidal time dependent value
  • 4.13  TANH: Hyperbolic tangent transfer function
  • 4.14  .model TABLE: Fit a curve
• Chapter 5  Installation
  • 5.1  The easy way
  • 5.2  If that doesn't work
  • 5.3  Details, custom compilation
• Chapter 6  Adding models
  • 6.1  Using the model compiler
• Chapter 7  Technical Notes
  • 7.1  Architecture
  • 7.2  Transient analysis
  • 7.3  Data Structures
  • 7.4  Performance