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!

Mathematica assign derivative

  1. Oct 20, 2008 #1
    Hi. A quick mathematica question. If I compute a derivative using D[f[x],x], how can I assign this result to another function, e.g. I want g[x]=f'[x] using the D-notation. Thanks.
     
  2. jcsd
  3. Oct 20, 2008 #2
    This what you mean?

    In[1]:= j = x^2

    Out[1]= x^2

    In[2]:= e = D[j, x]

    Out[2]= 2 x

    In[3]:= f = D[e, x]

    Out[3]= 2

    In[4]:= ff = D[f, x]

    Out[4]= 0
     
  4. Oct 21, 2008 #3
    g[x_] = D[f[x], x]

    Note the underscore in g[x_].

    (Alternatively, you could just do g = f')
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?



Similar Discussions: Mathematica assign derivative
  1. Problem with Mathematica (Replies: 11)

Loading...