QGIS/resources/function_help/json/log

{
  "function": "log",
  "description": "Returns the value of the logarithm of the passed value and base.",
  "arguments": [ {"arg":"base","description":"any positive number"},
                 {"arg":"value","description":"any positive number"}
               ],
  "examples": [ { "expression":"log(2, 32)", "returns":"5"},
  { "expression":"log(0.5, 32)", "returns":"-5"}
  ]
}