annihilator method

== English == === Etymology === From its use of an annihilator (in this case a differential operator) to render the equation more tractable. === Noun === annihilator method (usually uncountable, plural annihilator methods) (mathematical analysis) A procedure used to find a particular solution to certain types of inhomogeneous ordinary differential equations. ==== Usage notes ==== The term undetermined coefficients is sometimes used to refer to the step in the procedure when the coefficients are calculated. (Note, however, that the method of undetermined coefficients is a separate, although closely related, method.) ==== Translations ====