1. Not finding help here? Sign up for a free 30min 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!

Thermodynamics, Linear Interpolation

  1. Mar 12, 2010 #1
    1. The problem statement, all variables and given/known data
    I have been trying to learn how to use linear interpolation to find out the data needed from the thermodynamics chart, however, the book that is assigned does not even talk about it. Could someone please explain how linear interpolation is used? Thanks
     
  2. jcsd
  3. Mar 12, 2010 #2

    hotvette

    User Avatar
    Homework Helper

    The assumption with linear interpolation is that the two points (x1, y1) and (x2, y2) are connected with a line. Using the two point equation of a line, we get:

    y - y1 = m (x - x1), where m = (y2 - y1)/(x2 - x1)

    Thus for x3 that is between x1 and x2, we get:

    y3 = y1 + (x3 - x1) (y2 - y1)/(x2 - x1)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Thermodynamics, Linear Interpolation
  1. Interpolation error. (Replies: 1)

Loading...