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Making functions with 'inline' command in matlab

  1. Sep 9, 2007 #1
    hi everybody... i'm new here, and i'm here 'cause i'm having some trouble with matlab
    i was trying to integrate a function, so i first defined the function with the inline command:
    f=inline('1/sqrt(1-0.25*sin(x)^2)')
    now matlab says nothing if you write the function with this command, but it makes it after, when you decide to do some operation... that happens to me when i try to integrate using the quad command, and matlab throws those red letters saying Error...
    i may be making some syntaxis mistakes, that's why i'm asking here for some help

    by the way, i want to do this integral
    [itex]\int_0^{\frac{\pi}{2}} \frac{ds}{\sqrt{1-0.25\sin^2(s)}}[/itex]
    thanks
     
    Last edited: Sep 9, 2007
  2. jcsd
  3. Sep 17, 2007 #2

    CEL

    User Avatar

    try
    f=inline('1./sqrt(1-0.25*sin(x).^2)')
     
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