The math tools plot dynamical systems and algebraic work that show up in differential equations and linear algebra. The Phase Portrait Generator is a plotter for 2D autonomous ODEs—center, spiral, saddle, and limit cycles.
- Phase portraits: vector field, nullclines, and equilibrium classification
- 2D graphing for y = f(x) with local extrema
- Time / parametric graphing
- Linear systems up to 6×6 with RREF
If you searched for a phase portrait plotter or generator, open that tool first. Use the graphing calculator for ordinary functions and the linear solver when you linearize near an equilibrium.
Classify equilibria with the differential equations formula sheet. Intro mechanics is on the physics formula sheet; GRE review is the Physics GRE equation sheet.
Graphing & dynamics
- Phase Portrait GeneratorPhase portrait calculator, generator, and plotter for 2D autonomous systems—vector field, trajectories, and equilibria (center, spiral, saddle).
- 2D Graphing CalculatorPlot y = f(x) with adjustable windows and local extrema markers.
- Time Graphing ToolAnimate functions of time and parametric trajectories with a playable t parameter.
Related guides
- Physics GRE Equation SheetPhysics GRE equation sheet and formula sheet—mechanics, E&M, quantum, thermo, optics, relativity, high-yield constants, topic weights, and a two-week study plan.
- Electric Field Guide & VisualizerLearn electric field concepts, key formulas, and point-charge visualizations for introductory and GRE-level physics.
- Physics Formula SheetIntroductory physics formula sheet and equation sheet—kinematics, Newton, energy, momentum, rotation, waves, and basic E&M—with links to the graphing and field tools.
- Differential Equations Formula SheetDifferential equations formula sheet: first- and second-order ODEs, Jacobian linearization, and how to classify node, saddle, spiral, and center equilibria.