error on quad function and its function call ar = real_part(t), need help again

[Shih Lin]

Dear octave expert:

>    When using quad, you suggest me to do
> funtion ar = real_part(t)
>
> but I get
> ??? function ar
>
> Missing operator, comma, or semi-colon
>
> I type in the script of matlab, is your suggestion is Mfile?
>
> im Mfile ,
first of all, I put *.m file in the same directory of octave
/usr/bin

why when I call quad('real_part'....)
it still reponse me
undefined   in octave 2.1.28

so I tried on student version of matlab5.3 of linux:

I still need another parameter to be my complex funtion
> exp(i*f*t)*sin(f)/f
> f is the variable will be integrated in quad function call, t will be
> reserved as time domain
> to plot later.
> I tried many times difficult do two parameter at the same time, need
> your help again
>
> if is script, what should I modify?
>
> Sincerely
> Eric(address@hidden)

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