neilparker62's latest activity
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neilparker62 reacted to wrobel's post in the thread Solving an elementary trigonometric equation with
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Perhaps it would be clearer to write: $$\sin x=a,\quad |a|\le 1\Longrightarrow$$ $$x=\arcsin a+2\pi n$$ and $$x=\pi-\arcsin a+2\pi... -
neilparker62 reacted to DennisN's post in the thread Our Beautiful Universe - Photos and Videos with
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It was a solar eclipse yesterday in Europe. Here in Sweden it was partial (ca 80%, if I remember correctly). I learned about it just... -
neilparker62 replied to the thread Two balls, dropped with a delay of ##\Delta t##, meet after rebound.What goes up (in time t) must come down (also in time t)! $$t_1=t_2 \approx 0.6s$$ -
neilparker62 reacted to brotherbobby's post in the thread Two balls, dropped with a delay of ##\Delta t##, meet after rebound with
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I had asked at @A.T. : ``Is it also true that for a ball thrown vertically up and which rises to a maximum height ##h##, the time to... -
neilparker62 replied to the thread I wrote a book!.We tend to take books for granted but it's a huge achievement to have actually written one. Congratulations on becoming a published author. -
neilparker62 replied to the thread Insights AI Enriched Problem Solving.Mind blowing! -
neilparker62 replied to the thread Insights AI Enriched Problem Solving.$$H=\frac{g}{2}\left(\frac{t_{0}}{2}+\frac{h}{gt_{0}}\right)^{2}$$ I just needed to see your formula. -
neilparker62 replied to the thread Insights AI Enriched Problem Solving.Google Gemini. Will post all its workings generated after some "coaching" from me. I referred it to following desmos graph... -
neilparker62 replied to the thread Insights AI Enriched Problem Solving.same thing I think. Just need to coach your AI to tidy up maybe. -
neilparker62 reacted to AlexB23's post in the thread Insights AI Enriched Problem Solving with
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Thank you. I will plug that in immediately. As Gemma 4 is based upon Gemini, it would probably fail as well. Not sure if it failed or... -
neilparker62 replied to the thread Two balls, dropped with a delay of ##\Delta t##, meet after rebound.Excellent diagram. Can solve by finding the area under the blue curve between it's x-intercept and point C. -
neilparker62 reacted to Andy Resnick's post in the thread Our Beautiful Universe - Photos and Videos with
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Crescent moon this evening @ 800mm (cropped): Deets: nikon D810 + nikkor 800/8, 1/5s, ISO 1250, straight to jpg. Maybe you prefer... -
neilparker62 replied to the thread Undergrad Descartes’ Geometry of Square Roots.https://archive.org/details/nicolaicopernici00cope_1/page/n7/mode/2up
