{
  "name": "atan",
  "type": "function",
  "groups": ["Math"],
  "description": "Returns the inverse tangent of a value in radians.",
  "arguments": [{
    "arg": "value",
    "description": "tan of an angle in radians"
  }],
  "examples": [{
    "expression": "atan(0.5)",
    "returns": "0.463647609000806"
  }],
  "tags": ["tangent", "inverse", "angle", "radians"]
}