QGIS/resources/function_help/json/round

{
  "name": "round",
  "type": "function",
  "groups": ["Math"],
  "description": "Rounds a number to number of decimal places.",
  "arguments": [{
    "arg": "value",
    "description": "decimal number to be rounded"
  }, {
    "arg": "places",
    "optional": true,
    "default": "0",
    "description": "Optional integer representing number of places to round decimals to. Can be negative."
  }],
  "examples": [{
    "expression": "round(1234.567, 2)",
    "returns": "1234.57"
  }, {
    "expression": "round(1234.567)",
    "returns": "1235"
  }, {
    "expression": "round(1234.567, -1)",
    "returns": "1230"
  }],
  "tags": ["rounds", "places", "decimal", "number"]
}