Constant (常數): A quantity that does not change its value.
Closed interval (閉區間): An interval that includes its endpoints.
Boundary (邊界): A line that marks the limits of an area.
Domain (定義域): The set of all possible input values (x-values) of a function.
Range (值域): The set of all possible output values (y-values) of a function.
Positive (正的)：Greater than zero.
Nonnegative (非負): Greater than or equal to zero.
Numerator (分子): The top number in a fraction.
Denominator (分母): The bottom number in a fraction.
Quadratic (二次的): Relating to a parabola.
One-to-one function (一對一函數): A function that has distinct values at distinct elements in its domain.
Onto function (映成函數): A function where every element in the codomain is mapped to by at least one element from the domain.
Inverse function (反函數): A function that undoes, or inverts, the effect of a function ƒ.
Natural logarithm (自然對數): The logarithm with base e.
Exponential function (指數函數): A function of the form f(x) = a^x, where a is a positive constant, a can not equal to 1, x the exponent.
Inverse trigonometric function (反三角函數): The inverse functions of the trigonometric functions.
Polynomial (多項式): An expression consisting of variables and coefficients, involving only the operations of addition, subtraction, multiplication, and non-negative integer exponents of variables.
Rational function (有理函數): A function that can be written as the ratio of two polynomials.
Remainder (餘數): The amount left over after a division.