pa·ram·e·ter /pəˈræmətɚ/
  助變數,媒介變數,參數
  parameter
  對參數線性的
  parameter
  參數;參項;參量;參(變)量;參(變)數	PAR;PARAM
  parameter
  參數
  parameter
       n 1: a constant in the equation of a curve that can be varied to
            yield a family of similar curves [syn: parametric
            quantity]
       2: any factor that defines a system and determines (or limits)
          its performance
       3: a quantity (such as the mean or variance) that characterizes
          a statistical population and that can be estimated by
          calculations from sample data