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

MATLAB symbolic to numeric

  1. Mar 31, 2009 #1

    I'm trying to use matlab to simulate a simple RC low pass filter. I have an array of data that represents the signal I want to filter, and I have the s-domain representation of the filter circuit. I'm pretty new to this type of analysis, but I'm pretty sure I should be taking the fft of my data and multiplying it by the s-domain representation (transfer function) of the circuit, and then take the ifft to get the output.
    I guess my problem is I have a symbolic transfer function that I'm trying to multiply with a numeric array. Any Ideas on how I can get a numeric representation of my symbolic transfer function?

    Thanks in advance.

    (this is my transfer function if that helps)
    transferFunc = 100/(s+100)
  2. jcsd
  3. Apr 1, 2009 #2


    User Avatar
    Science Advisor

  4. Apr 5, 2009 #3
    Thanks a million MATLABdude,
    That tutorial held all the answers and more! :)
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: MATLAB symbolic to numeric
  1. MOSFET symbol (Replies: 9)

  2. Symboling Voltage (Replies: 13)

  3. Circuit symbol (Replies: 3)

  4. Ground symbol (Replies: 15)