(calculus) A differential equation that involves the partial derivatives of a function of several variables.

(calculus) an equation involving the derivatives of a function

(transitive) To consider equal or equivalent. / (transitive, mathematics) To set as equal.

(programming) A statement in assembly language that defines a symbol having a particular value.

(mathematics) a polynomial equation of the second degree.

(uncountable) Equipment or supplies, especially military ones. / (obsolete) Military dress; uniform, armour etc. / A type of horse-drawn carriage. / The carriage together with attendants; a retinue.

(transitive, obsolete) To furnish with an equipage.

(physics) A three-dimensional partial differential equation which determines the evolution of a quantum mechanical wave function

Unvarying, calm and steady; constant and uniform. / (of temperature) Free from extremes of heat or cold. / (of emotions etc) Not easily disturbed; tranquil.

(calculus) An equation involving the derivatives of a function of only one independent variable.