[TI-M] Re: The numerical integral


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[TI-M] Re: The numerical integral




This isn't hard, as there's actually a command to shade the area between 
two curves, Shade(. Syntax as taken from the manual:
Shade(lowerfunc,upperfunc[Xleft,Xright,pattern,patres])
Calculating the difference of the two integrals can be done pretty 
easily as well; you'd simply subtract the two commands 
fnInt(...)-fnInt(...).

A four line program could get the job done with those commands.

-c.j.w.

Jonas Jacobsson wrote:
> Hi,
> 
> I have a T83+.
> 
> In the calc menu it's possible to find the numerical integral of
> a function and shade the area it calculates. Does anyone know of
> a program that can calculate and shade the area between two
> functions? If not, do you think it would be hard to write such
> a program?
> 
> Eg. (S=integral, f(x)=higher function, f(g)=lower function)
> 
> Instead of just:
> b
> S f(x) dx =
> a
> 
> it should be:
> b
> S f(x)-f(g) dx =
> a
> 
> 
> /jonas
> 
> 
> 





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