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!

Matlab help a noob

  1. Jan 25, 2006 #1
    Hi there.. I am really noob to matlab i want to draw the following equation
    How can i draw this function?
    Can u help me?
    L takes values from 0 to 10km
    and Po=1watt
  2. jcsd
  3. Jan 26, 2006 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Gold Member

    Well, start with the basics... do you know how to enter your data for L into Matlab? How about P(L)?
  4. Jan 27, 2006 #3
    Code (Text):
    Po = 1; % define Po
    a = 0.2; % define a
    L = 0:10/100:10 % make a vector L with 100 elements evenly spaced from 0 to 10

    %option 1, compute P(L) one element at a time
    for i = 1:length(L) %loop through all values of L
        P1(i) = Po*exp(-a*L(i));

    %option 2, compute all the values at once
    P2 = Po*exp(-a*L);

    figure;plot(L,P1) % Plot P vs L
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Matlab help a noob
  1. Matlab noob question. (Replies: 1)

  2. MATLAB help (Replies: 7)

  3. Matlab help (Replies: 6)