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Re: simple Problem: D[ ]


f[x_] := x^2;

D[f[x], x]

2*x

Bob Hanlon

In a message dated 2001/2/20 3:20:22 AM, maier1 at sbox.tu-graz.ac.at writes:

>I use mathmatica the first time and have a problem with a deriviation:
>
>in a simple problem:
>
>f[x]=x^2
>abl=D[f[x],x]
>
>then Mathematica puts out f[x]'    , but not 2 x
>
>How does it work correctly?
>


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