1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

What would be general formula of a circle in form of variables ?

  1. Sep 7, 2014 #1
    General formula of a line is ax+b=0
    Similarly can we have a general formula of a circle ?
  2. jcsd
  3. Sep 7, 2014 #2
    The general formula for a line in a plane is y=mx+c
    The general formula for a circle in the x-y plane is x^2+y^2=r^2 (where r is the radius of the circle)
  4. Sep 7, 2014 #3


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    There's an even more general equation for a circle, one whose center is not located at the origin. :smile:
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook