{"record":{"id":"6e853b1394e80bb0","repo":"TheAlgorithms/Python","slug":"area-can-not-be-negative","errorCode":null,"errorMessage":"Area can not be negative","messagePattern":"Area can not be negative","errorType":"validation","errorClass":"ValueError","httpStatus":null,"severity":"error","filePath":"physics/casimir_effect.py","lineNumber":97,"sourceCode":"    >>> casimir_force(force = 3457e-12, area = 0, distance = -0.00344)\n    Traceback (most recent call last):\n        ...\n    ValueError: Distance can not be negative\n\n    >>> casimir_force(force = -912e-12, area = 0, distance = 0.09374)\n    Traceback (most recent call last):\n        ...\n    ValueError: Magnitude of force can not be negative\n    \"\"\"\n\n    if (force, area, distance).count(0) != 1:\n        raise ValueError(\"One and only one argument must be 0\")\n    if force < 0:\n        raise ValueError(\"Magnitude of force can not be negative\")\n    if distance < 0:\n        raise ValueError(\"Distance can not be negative\")\n    if area < 0:\n        raise ValueError(\"Area can not be negative\")\n    if force == 0:\n        force = (REDUCED_PLANCK_CONSTANT * SPEED_OF_LIGHT * pi**2 * area) / (\n            240 * (distance) ** 4\n        )\n        return {\"force\": force}\n    elif area == 0:\n        area = (240 * force * (distance) ** 4) / (\n            REDUCED_PLANCK_CONSTANT * SPEED_OF_LIGHT * pi**2\n        )\n        return {\"area\": area}\n    elif distance == 0:\n        distance = (\n            (REDUCED_PLANCK_CONSTANT * SPEED_OF_LIGHT * pi**2 * area) / (240 * force)\n        ) ** (1 / 4)\n        return {\"distance\": distance}\n    raise ValueError(\"One and only one argument must be 0\")\n\n","sourceCodeStart":79,"sourceCodeEnd":115,"githubUrl":"https://github.com/TheAlgorithms/Python/blob/f5988cc09713315817df6a7e327e258013a94440/physics/casimir_effect.py#L79-L115","documentation":"Error \"Area can not be negative\" thrown in TheAlgorithms/Python.","triggerScenarios":"Thrown at physics/casimir_effect.py:97 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Pass a non-negative area."],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"f5988cc09713315817df6a7e327e258013a94440","analyzedAt":"2026-08-14T17:30:07.041Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}