still a room when its empty? Does the room,
the thing itself have purpose? Or do we, what's the word... imbue it."
- Jubal Early, Firefly
r-help-boun...@r-project.org wrote on 12/16/2010 09:11:33 AM:
> [image removed]
>
> Re: [R] Integrate two function in R
>
see inline.
On Thu, Dec 16, 2010 at 10:11 AM, Ben Bolker wrote:
> Alaios yahoo.com> writes:
>
>>
>> Hello I have two function in R
>> like
>> g(x)=2x-3
>> and s(x)=5x^2+2
>>
>> and I want to find the integrafl of the g(x)*s(x) inside the interval of
>> [a,b]
>>
>
> Analytically or numerically?
I guess what you have is
g <- function(x){ 2*x-3 }
s <- function(x){ 5*x^2+2 }
and what you want is
f<-function(x){ g(x)*s(x) }
integrate(f,a,b)
Try that and see if it works. If not (that is, if your actual g and s are
not as in the example), maybe you'll have to do this:
integrate(Vectorize(
On Dec 16, 2010, at 7:27 AM, Alaios wrote:
Hello I have two function in R
like
g(x)=2x-3
and s(x)=5x^2+2
and I want to find the integrafl of the g(x)*s(x) inside the
interval of [a,b]
Could you please help me find the proper function?
It depends on what you are doing:
None of what appea
Ben Bolker gmail.com> writes:
> Analytically or numerically?
> It sounds like you want the answer analytically, in which case R
> can't do it, but it is an easy integral
>
> g(x)*s(x) = 10*x^3-15*x^2+4*x-6
> indefinite integral = 10/3*x^4 -15/3*x^3 + 4/2*x^2 - 6*x + C
oops, the first
Alaios yahoo.com> writes:
>
> Hello I have two function in R
> like
> g(x)=2x-3
> and s(x)=5x^2+2
>
> and I want to find the integrafl of the g(x)*s(x) inside the interval of [a,b]
>
Analytically or numerically?
It sounds like you want the answer analytically, in which case R
can't do it
Hello I have two function in R
like
g(x)=2x-3
and s(x)=5x^2+2
and I want to find the integrafl of the g(x)*s(x) inside the interval of [a,b]
Could you please help me find the proper function?
I would like to thank you in advance for your help
Regards
Alex
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