User talk:102.40.162.88

July 2021
Hello, I'm 0qd. An edit you recently made to Spherical harmonics seemed to be a test and has been removed. If you want more practice editing, the sandbox is the best place to do so. If you think I made a mistake, or if you have any questions, you can leave me a message on my talk page. Thank you. 0qd (talk) 16:55, 4 July 2021 (UTC)