The Summing template on the C Key how does it work? - Printable Version +- HP Forums ( https://www.hpmuseum.org/forum)+-- Forum: HP Calculators (and very old HP Computers) ( /forum-3.html)+--- Forum: HP Prime ( /forum-5.html)+--- Thread: The Summing template on the C Key how does it work? ( /thread-12954.html) |

The Summing template on the C Key how does it work? - tom234 - 05-11-2019 11:54 AM
[attachment=7229]Product: 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 I have tried it in CAS and without CAS still, this function does not operate for me. Help needed. https://h30434.www3.hp.com/t5/Calculators/The-Summing-template-on-the-C-Key-how-does-it-work/td-p/7116522 [/quote] RE: The Summing template on the C Key how does it work? - Han - 05-11-2019 01:12 PM
The lower-case (script) i is the constant \( \sqrt{-1} \); use n for your index variable. RE: The Summing template on the C Key how does it work? - DrD - 05-11-2019 01:21 PM
1. (Lower case) i is a reserved variable, 2. The angle mode should be set to radians, 3. Use == for the comparison. RE: The Summing template on the C Key how does it work? - tom234 - 05-11-2019 02:57 PM
Thank you I have done the following, however, the answer is 1.9 It should be 1.5 for pi/2 and the answer should be 1. I can't do this in a function app. I had to do it in just the regular window under CAS. Is that where I should be entering it. RE: The Summing template on the C Key how does it work? - JMB - 05-12-2019 08:47 AM
It works fine in CAS. RE: The Summing template on the C Key how does it work? - Nigel (UK) - 05-12-2019 10:50 AM
(05-11-2019 02:57 PM)tom234 Wrote: Thank you I have done the following, however, the answer is 1.9 It should be The problem with what is shown in your thumbnail is that the \((2n+1)!\) in the denominator is outside the summation, which is why it still appears in the final answer. Nigel (UK) |