[R] Infinite Series

[Jeff Newmiller]

Please reply-all so the mailing list stays in the loop.

cumsum(1/(1:100)^2)

gives you the partial sums up through i=100.
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Sent from my phone. Please excuse my brevity.

On July 24, 2015 10:30:09 AM PDT, Janh Anni <annijanh at gmail.com> wrote:
>Hello Jeff,
>
>Thank you so much for the suggestion,  I searched cumsum as suggested
>but
>not sure it is what I had in mind.  For instance if I had the infinite
>series:    [image: Inline image 1]
>
>and want to compute the sum of the, say, first 100 terms, how could I
>use
>cusum to do that?
>
>Thanks again,
>
>Janh
>
>
>On Thu, Jul 23, 2015 at 11:51 PM, Jeff Newmiller
><jdnewmil at dcn.davis.ca.us>
>wrote:
>
>> ?cumsum
>>
>---------------------------------------------------------------------------
>> Jeff Newmiller                        The     .....       .....  Go
>Live...
>> DCN:<jdnewmil at dcn.davis.ca.us>        Basics: ##.#.       ##.#.  Live
>> Go...
>>                                       Live:   OO#.. Dead: OO#.. 
>Playing
>> Research Engineer (Solar/Batteries            O.O#.       #.O#.  with
>> /Software/Embedded Controllers)               .OO#.       .OO#. 
>rocks...1k
>>
>---------------------------------------------------------------------------
>> Sent from my phone. Please excuse my brevity.
>>
>> On July 23, 2015 8:23:39 PM PDT, Janh Anni <annijanh at gmail.com>
>wrote:
>> >Dear All,
>> >
>> >Does anyone know of any R functions that compute partial sums of
>> >series?
>> >
>> >Thanks in advance!
>> >
>> >Janh
>> >
>> >       [[alternative HTML version deleted]]
>> >
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>>