(mathematics) the variable in a functional relationship whose value determines the value of another variable

invariant quantity; an unchanging property or value in mathematics and physics

a variable that determines the specific form of a function or system

a variable in statistics that is possibly predictive of the outcome under study

A mathematical value in a function that changes according to the value of the [[自变量|自變量|zi4 bian4 liang4]]

a variable whose variation does not depend on that of another