/ Dictionary / Index L Lagrange's method: Meaning and Definition of Find definitions for: Lagrange''s meth'od Pronunciation: [key] — Math. Math. a procedure for finding maximum and minimum values of a function of several variables when the variables are restricted by additional conditions. Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease. La Grange Park Lagrange's theorem Related Content Daily Word Quiz: lunar Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language