Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Ti-89 help

  1. Mar 27, 2013 #1
    I have searched for a long time and i cant find a clear answer

    I want to find the general solution for x^2*y''-2y=0 using deslove and i typed it in as

    desolve(x^2*y''-2y=0,y) and it says too few arguments
    then i tried
    desolve(x^2*y''-2y=0,y,x) same thing, then i switched the y ans the x didnt help

    And i cant find any where the right format to use to solve this
  2. jcsd
  3. Mar 27, 2013 #2


    User Avatar
    Staff Emeritus
    Science Advisor
    Homework Helper

    In cases like these, one must consult the manual.

    Calculators and computers are notoriously balky about accepting any old input.
    For your equation, you must manipulate it so that it becomes y'' = stuff.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Ti-89 help
  1. TI-89 help (Replies: 2)

  2. Ti-89 titanium help (Replies: 1)

  3. TI-89 Calculator Help (Replies: 1)

  4. TI-89 FEA Help (Replies: 1)