ghqsandbox.net

find_features

Numerically locate the interesting points of a curve or surface inside the current viewport, so you can reason from real coordinates instead of guessing from the algebra. For y = f(x) it returns roots, maxima, minima, vertical asymptotes, the y-intercept, and intersections with the other visible curves. For a 3D surface z = f(x,y) it returns critical points classified as maximum, minimum or saddle from the sign of the Hessian determinant. Call this before you make a claim about where something crosses zero or turns around, and before annotate so the label lands exactly on the feature. Features outside the viewport are not found -- widen it with set_viewport if you expect more.

Page: /graph.html?mode=2d

Input schema

{
  "type": "object",
  "properties": {
    "id": {
      "type": "string",
      "description": "Expression id from list_expressions."
    }
  },
  "required": [
    "id"
  ]
}