{
  "function": "IMCOSH",
  "software": "LibreOffice Calc",
  "guide": "/libreoffice/functions/imcosh/",
  "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": 5,
  "native_observations": 0,
  "native_cases": [
    {
      "id": "IMCOSH-1",
      "function": "IMCOSH",
      "source_path": "content/libreoffice/functions/imcosh.md",
      "formula": "=IMCOSH(\"4-3i\")",
      "inputs": {},
      "expected": [
        -27.034945603074224,
        -3.851153334811777
      ],
      "kind": "complex",
      "actual": "-27.0349456030742-3.85115333481178i",
      "native_error": 0,
      "passed": true
    },
    {
      "id": "IMCOSH-2",
      "function": "IMCOSH",
      "source_path": "content/libreoffice/functions/imcosh.md",
      "formula": "=IMCOSH(2)",
      "inputs": {},
      "expected": [
        3.7621956910836314,
        0.0
      ],
      "kind": "complex",
      "actual": "3.76219569108363",
      "native_error": 0,
      "passed": true
    },
    {
      "id": "IMCOSH-3",
      "function": "IMCOSH",
      "source_path": "content/libreoffice/functions/imcosh.md",
      "formula": "=IMCOSH(0)",
      "inputs": {},
      "expected": [
        1.0,
        0.0
      ],
      "kind": "complex",
      "actual": "1",
      "native_error": 0,
      "passed": true
    },
    {
      "id": "IMCOSH-4",
      "function": "IMCOSH",
      "source_path": "content/libreoffice/functions/imcosh.md",
      "formula": "=IMCOSH(\"-1-i\")",
      "inputs": {},
      "expected": [
        0.8337300251311491,
        0.9888977057628651
      ],
      "kind": "complex",
      "actual": "0.833730025131149+0.988897705762865i",
      "native_error": 0,
      "passed": true
    },
    {
      "id": "IMCOSH-5",
      "function": "IMCOSH",
      "source_path": "content/libreoffice/functions/imcosh.md",
      "formula": "=IMCOSH(\"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_imcosh.html",
    "https://help.libreoffice.org/latest/en-US/text/scalc/01/04060116.html",
    "https://support.microsoft.com/en-us/excel/engineering-functions-reference",
    "https://support.google.com/docs/table/25273"
  ]
}