John Ripfield
Welcome!
Hello, John Ripfield, and welcome to Wikipedia! Thank you for your contributions. I hope you like the place and decide to stay. Here are some pages that you might find helpful:
- The five pillars of Wikipedia
- Tutorial
- How to edit a page
- How to write a great article
- Manual of Style
I hope you enjoy editing here and being a Wikipedian! Please sign your messages on discussion pages using four tildes (~~~~); this will automatically insert your username and the date. If you need help, check out Wikipedia:Questions, ask me on my talk page, or ask your question on this page and then place {{help me}} before the question. Again, welcome!--MollyPollyRolly (talk) 14:52, 26 July 2021 (UTC)
Edit to Kepler's equaiton edit
In this edit you changed an equation but did not change the source. Please explain what source you used to verify the equation. Jc3s5h (talk) 16:01, 19 February 2022 (UTC)
- The source is cited incorrectly. The fraction 2/m was missing. For example: the coefficient for sin(3*M) should read 2/3*J_3(3*e)=3/8*e^3-27/128*e^5+243/5120*e^7-243/40960*e^9+... (i.e. 2/3 times the power series expansion of the third order Bessel function of the first kind with argument 3*e).
- Compare with ref. https://en.wikipedia.org/wiki/Equation_of_the_center. John Ripfield (talk) 17:26, 7 April 2022 (UTC)