Site Map | FAQ

• Editor's Favorites
  • Answerplease: A new Q & A site
  • Asian Pacific American Heritage Month
  • Gay Pride Month
  • Everest Almanac
  • Memorial Day
  • Conversion Calculator
  • Campaign 2012
  • Country Profiles
  • Most Populous Cities of the World
  • Holidays in America
  • 50 States
  • Color Psychology
  • Top 50 U.S. Cities
  • Infoplease's Facebook page
  • Follow Infoplease on Twitter

 

Dictionary

direc'tional deriv'ative

Math.
the limit, as a function of several variables moving along a given line from one specified point to another on the line, of the difference in the functional values at the two points divided by the distance between the points.

Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.

directional

directional microphone

• • Cite
  • Print
  • Email
  • Bookmark
    • Add bookmark
    • Add to del.icio.us
    • Digg It!
    • Add to Reddit

Related Content Daily Word Quiz: unctuous Analogy of the Day: Today's Analogy Spelling Bee: Today's Spelling Bee Kids' Word Quiz: mercenary Crossword: Crossword Puzzle Guide Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language

Find definitions for: