i have already did a Ghost recovery...

i think it should be exp(1)^x

int(exp(1)^x,x);

is this want you need?

this is really helpful

i might just use "0.1" method

i think all of you got a nice idea of doing it
however
i think may be what my friend what to do with maple is :
suppose he has got several set of data
a:=set of data
b:=sin(set of data)
c:=cos(set of data)
3d plot
is there any simple way to do so?
not like smooth plot liek plot( sin,1..12), thanks anyway
======================
For Maple on MAC
how do i open classical worksheet if it is not on the desktop?

use the theorem to test the ODE ,the solutions are NOT unique

however maple gives me a unique solution?

LibraryTools:-Save(mayan, "/home/joe/maple/lib/mayan.mla"):
should i change that slightly to get rid of the waring "Error, (in unknown) file or directory does not exist"?

really sorry to bother you
however i cant resist such an intersing topic
===
libname := "C:\\Documents and Settings\\CasperYC\\Desktop\\mayan.mla", libname;
mayan(123);
then run your new procedure
still
Error, (in unknown) file or directory does not exist
the mayan file is on my desktop...

>libname := "C:\Documents and Settings\CasperYC\Desktop\mayan.mla", libname:
> mayan(123);
then copy your new procedure
still get
Error, (in unknown) file or directory does not exist

return y[N+1];
basically i uderstand your procedure now
however i cantfigure out the use of "return"and why it's index is N+1 since the rest "y"s have index small "n"

that's only a small part of a project
i am doing it for fun.
you can find the whole exercise on the math department of the university of oxford.
i haven't learnt this perticular topic so it is kind of hard to me.

Fouriercoeff:=proc(f,n)
> local k,acoeff,bcoeff,azero:
>
> acoeff:=seq(evalf(Int(f(x)*cos(k*x),x=-Pi..Pi))/evalf(Pi),k=1..n):
>
> bcoeff:=seq(evalf(Int(f(x)*sin(k*x),x=-Pi..Pi))/evalf(Pi),k=1..n):
>
> azero:=evalf(Int(f(x),x=-Pi..Pi))/evalf(2*Pi):
>
> print("a[n]=",acoeff \n);
> print("b[n]=",bcoeff \n);
> print("a[0]=",azero \n);
>
> end:
and
Fouriercoeff:=proc(f)
> local k,acoeff,bcoeff,azero,n:
>
> assume(n::integer);
>
> acoeff:=evalf(Int(f*cos(n*x),x=-Pi..Pi))/evalf(Pi):
>
> bcoeff:=evalf(Int(f*sin(n*x),x=-Pi..Pi))/evalf(Pi):
>
> azero:=evalf(Int(f,x=-Pi..Pi))/evalf(2*Pi):
>
> print("a[n]=",acoeff \n);
> print("b[n]=",bcoeff \n);
> print("a[0]=",azero \n);
>
> end:
is the best I can do to satisfy that question
someone have any better idea to that questiones ( see exercise 4 and 5 on http://img20.imageshack.us/img20/3518/56351860db7.jpg) thanks

contourplot(f,x=-2..2,y=-2..1,color=red,contours=[-1,-7/16,0,3/4]);
can i ask why is this order contours=[-1,-7/16,0,3/4]);?
cheers

thanks
how about exercise 7?