A {{CMD_8}} in the variable {{MATH_9}} is a function {{CMD_10}}which can be written{{CMD_11}} in the form {{MATH_12}} where the {{MATH_13}}'s are all constants (called the {{CMD_14}}) and {{MATH_15}} is a whole number (called the {{CMD_16}} when {{MATH_17}}). The domain of a polynomial function is {{MATH_18}}. {{CMD_19}}