User talk:CaoHao

May 2017
Hello, I'm Hayman30. I wanted to let you know that I reverted one of your recent contributions —the one you made with this edit to Nodal analysis— because it did not appear constructive. If you would like to experiment, please use the sandbox. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thanks. Hayman30 (talk) 14:02, 17 May 2017 (UTC)

Welcome, but be careful
Welcome to Wikipedia. Here are suggested readings: WP:SECONDARY and WP:COI. The gist of these guidelines are: If you have questions, many editors can offer advice. Happy editing.--Smokefoot (talk) 12:54, 4 September 2018 (UTC)
 * Wikipedia prefers citations to reviews and books, not primary journal references (tens of thousands appear annually). Citing secondary sources is the encyclopedic style.
 * Do not cite yourself or your colleagues. It's called conflict of interest.  Many new editors cite themselves mainly.  That behavior is unacceptable.