variations
var*i*a*tion
noun
{bc}the act or process of varying {bc}the state or fact of being {a_link|varied}
calculus of variations
noun phrase
{bc}a branch of mathematics concerned with applying the methods of calculus to finding the maxima and minima of a function which depends for its values on another function or a curve
direct variation
noun
{bc}mathematical relationship between two variables that can be expressed by an equation in which one variable is equal to a constant times the other
inverse variation
noun
{bc}mathematical relationship between two variables which can be expressed by an equation in which the product of two variables is equal to a constant