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HeyJoeJoe Top Student
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The Summing template on the C Key how does it work?

HP Prime G2

I tried using The Sum that E for lists with i=0 and infinity sign above and the expression after the = sign.

 

I put the template on my Home page and added all the parts it did not work.

 

Does anyone know how to use it

Screen Shot 2019-05-11 at 7.30.18 AM.png

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Distinguished Professor
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The Summing template on the C Key how does it work?

Hi!, @HeyJoeJoe :

Check the configuration in your calculator. The result with Wolfran Alpha, is ...

Suma pi.PNG

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HeyJoeJoe Top Student
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The Summing template on the C Key how does it work?

We did the i for i=10, thanks but the calculator still doesnt want to except that Series Expansion. It gets stuck on fractions and parts.

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The Summing template on the C Key how does it work?

Hi!, HeyJoeJoe :

Try, with ... sin(PI/2)=Sum(((-1)^i*X^(2*i+1))/(2*i+1)!,i,10,infinite) --> X=~ 8.73894 

From ... https://www.wolframalpha.com/input/?source=frontpage-immediate-access&i=sin(pi%2F2)%3DSum(((-1)%5Ei*...)

HeyJoeJoe Top Student
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The Summing template on the C Key how does it work?

Thank you.

your  equation first and second replacing with n as the variable

Screen Shot 2019-05-12 at 6.40.44 AM.pngScreen Shot 2019-05-12 at 6.41.17 AM.png

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The Summing template on the C Key how does it work?

Hi!, @HeyJoeJoe :

The result in Exact Mode, of you ultimate equation is, with Wolfram Alpha ...

sin(pi/2)=Sum(((-1)^n*x^2*n+1)/(2*n+1)!),n,10,infinite) =~ -2.32518 x10^8 = complex infinite

From ... https://www.wolframalpha.com/input/?source=frontpage-immediate-access&i=sin(pi%2F2)%3DSum(((-1)%5En*...)

In HP PRIME calculator ...

Sin 90°1_1.PNG

 

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