Thank you for your reply.
I suceeded to run the code.
>>> f = Function('f')
>>> x = Symbol('x')
>>> diff(f(x),x)
D(f(x), x)
How about second derivatives ?
I mean
diff(D(f(x), x),x)
Is there any way to get the answer ?
Thanks in advance,
czbebe
On 2009年12月28日, 午後11:11, smichr <smi...@gmail.com> wrote:
> On Dec 28, 12:04 pm, "czbebe_...@yahoo.co.jp" <czbebe_...@yahoo.co.jp>
> wrote:
>
> > Dear members,
>
> > When function f is a function of x, sympy diff output is diff(f,x) =
> > 0.
> > I hope output should be dx(f). Is this output possible for current
> > sympy ?
>
> I get the following:
>
> >>> f = Function('f')
> >>> x = Symbol('x')
> >>> diff(f(x),x)
>
> D(f(x), x)
>
> Did you use f(x) or did you use f? Could you copy and paste the exact
> input and output involved? That would me to understand what exactly
> you are trying to do.
>
> /smichr
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