{
  "aliases": null,
  "backlinks": [
    {
      "field": "defines",
      "target": "081YA6RCX6"
    },
    {
      "field": "uses",
      "target": "0GCWJS2EGB"
    }
  ],
  "body": "\n## Summary\n\nA directrix of a conic is a line with the following property. For each point of the conic, the distance to a focus divided by the distance to the line is the same constant. This constant is the eccentricity.\n",
  "commit": "6ac761d40018146541484a9e8b9eafd6ecc303dc",
  "front": {
    "kind": "concept",
    "msc": [
      "51N20"
    ],
    "name": "Directrix",
    "sources": [
      {
        "locator": "Eccentricity, focus and directrix",
        "url": "https://en.wikipedia.org/wiki/Conic_section"
      }
    ],
    "tag": "0E5CXYNEPX"
  },
  "kind": "concept",
  "link": "https://math2.tamnd.com/node/0E5CXYNEPX/",
  "links": null,
  "markdown": "https://math2.tamnd.com/node/0E5CXYNEPX.md",
  "msc": [
    "51N20"
  ],
  "name": "Directrix",
  "prov": null,
  "role": "",
  "source": "https://github.com/tamnd/math2/blob/main/nodes/0E5/0E5CXYNEPX.md",
  "status": null,
  "tag": "0E5CXYNEPX",
  "uri": "m2://0E5CXYNEPX",
  "url": "https://math2.tamnd.com/wiki/directrix/",
  "writing": {
    "tag": "0E5CXYNEPX",
    "kind": "concept",
    "level": "W0",
    "next": [
      {
        "what": "an inventory row",
        "note": "the row of the inventory that the node accounts for",
        "have": 0,
        "want": 1
      }
    ]
  }
}