{
  "function": "IMCOS",
  "software": "LibreOffice Calc",
  "guide": "/libreoffice/functions/imcos/",
  "review_date": "2026-10-12",
  "scope": "Selected example checks, not certification of every formula, error, locale or cross-application import/export.",
  "native_engine": "LibreOffice 25.2.3.2 520(Build:2)",
  "native_assertions": 4,
  "native_observations": 0,
  "native_cases": [
    {
      "id": "IMCOS-1",
      "function": "IMCOS",
      "source_path": "content/libreoffice/functions/imcos.md",
      "formula": "=IMCOS(\"4-3i\")",
      "inputs": {},
      "expected": [
        -6.580663040551157,
        -7.581552742746545
      ],
      "kind": "complex",
      "actual": "-6.58066304055116-7.58155274274654i",
      "native_error": 0,
      "passed": true
    },
    {
      "id": "IMCOS-2",
      "function": "IMCOS",
      "source_path": "content/libreoffice/functions/imcos.md",
      "formula": "=IMCOS(2)",
      "inputs": {},
      "expected": [
        -0.4161468365471424,
        -0.0
      ],
      "kind": "complex",
      "actual": "-0.416146836547142",
      "native_error": 0,
      "passed": true
    },
    {
      "id": "IMCOS-3",
      "function": "IMCOS",
      "source_path": "content/libreoffice/functions/imcos.md",
      "formula": "=IMCOS(\"0+0i\")",
      "inputs": {},
      "expected": [
        1.0,
        -0.0
      ],
      "kind": "complex",
      "actual": "1",
      "native_error": 0,
      "passed": true
    },
    {
      "id": "IMCOS-4",
      "function": "IMCOS",
      "source_path": "content/libreoffice/functions/imcos.md",
      "formula": "=IMCOS(\"bad\")",
      "inputs": {},
      "expected": 502,
      "kind": "error",
      "actual": 502,
      "native_error": 502,
      "passed": true
    }
  ],
  "independent_model_cases": [],
  "documented_expected_results_not_native": false,
  "sources": [
    "https://help.libreoffice.org/latest/en-US/text/scalc/01/func_imcos.html",
    "https://help.libreoffice.org/latest/en-US/text/scalc/01/04060116.html",
    "https://support.microsoft.com/en-us/excel/excel-functions-alphabetical",
    "https://support.google.com/docs/table/25273"
  ]
}