Function ode

ode(
    sol: { t: number[]; y: number[][] },
    config?: {
        context?: CanvasRenderingContext2D;
        i?: number;
        j?: number;
        lineWidth?: number;
        phase?: boolean;
        size?: number;
        strokeStyle?: string;
        x?: number;
        y?: number;
    },
): number[][]
Plots an ODE solution. Supports both scalar and system ODEs. For scalar ODEs, plots y(t). For systems, can plot either y[j] vs t or y[j] vs y[i] (phase plot) based on the "phase" config option.
Parameters
- sol: { t: number[]; y: number[][] }
  The solution object from Chalkboard.diff.solve or Chalkboard.diff.solveAdaptive
- config: {
      context?: CanvasRenderingContext2D;
      i?: number;
      j?: number;
      lineWidth?: number;
      phase?: boolean;
      size?: number;
      strokeStyle?: string;
      x?: number;
      y?: number;
  } = {}
  - Optionalcontext?: CanvasRenderingContext2D
    Canvas context
  - Optionali?: number
    x-component index (for phase plots)
  - Optionalj?: number
    y-component index (for phase plots)
  - OptionallineWidth?: number
    Stroke width
  - Optionalphase?: boolean
    If true, plots y[j] vs y[i] (phase plot), if false, plots y[i] vs t
  - Optionalsize?: number
    Scale, defaults to 1, divided by 100 internally for finer control
  - OptionalstrokeStyle?: string
    Stroke color
  - Optionalx?: number
    x-offset (canvas translation), defaults to canvas center
  - Optionaly?: number
    y-offset (canvas translation), defaults to canvas center
Returns number[][]
Example
```
// Plot scalar solution y(t)
const ode1 = Chalkboard.diff.exponential(-1);
const sol1 = Chalkboard.diff.solve(ode1, { t0: 0, t1: 5, steps: 300, y0: 1 });
Chalkboard.plot.ode(sol1, { strokeStyle: "red", size: 1 });

// Phase plot for harmonic oscillator (y vs dy)
const ode2 = Chalkboard.diff.harmonic();
const sol2 = Chalkboard.diff.solve(ode2, { t0: 0, t1: 20, steps: 2000, y0: { y0: 1, dy0: 0 } });
Chalkboard.plot.ode(sol2, { phase: true, i: 0, j: 1, strokeStyle: "blue" });
```
- Defined in Chalkboard.plot.ts:886