Results 1 to 2 of 2
Like Tree1Thanks
  • 1 Post By MarkFL

Thread: constant-variable

  1. #1
    Newbie
    Joined
    Jun 2018
    From
    Dimona
    Posts
    15

    constant-variable

    What the difference between constant to variable?
    Follow Math Help Forum on Facebook and Google+

  2. #2
    MHF Contributor MarkFL's Avatar
    Joined
    Dec 2011
    From
    St. Augustine, FL.
    Posts
    2,140
    Thanks
    838

    Re: constant-variable

    A constant is a value that remains unchanged, such as $\displaystyle \pi$ or $\displaystyle e$ or 1. A variable is something whose value is allowed to change within a domain of values. For example, consider the formula for the area of a circle:

    $\displaystyle A=\pi r^2$

    $\displaystyle A$ is a variable representing the area of the circle, and in this context it is a dependent variable, because its value depends on the value of $\displaystyle r$, the radius of the circle. $\displaystyle r$ is an independent variable, as we can let it be anything we want that represents the radius of a circle, generally taken to be some positive real number, i.e. $\displaystyle 0<r$.
    Thanks from HallsofIvy
    Follow Math Help Forum on Facebook and Google+

Similar Math Help Forum Discussions

  1. Replies: 1
    Last Post: Sep 18th 2014, 07:01 PM
  2. Change of Variable, table of integral, and constant of integration
    Posted in the Differential Equations Forum
    Replies: 1
    Last Post: Apr 20th 2011, 06:22 AM
  3. A characterization of an almost everywhere constant variable
    Posted in the Advanced Statistics Forum
    Replies: 2
    Last Post: Mar 8th 2011, 12:12 AM
  4. Replies: 2
    Last Post: Apr 22nd 2010, 09:23 PM
  5. Replies: 1
    Last Post: Aug 14th 2009, 05:55 AM

/mathhelpforum @mathhelpforum