neilparker62's latest activity
-
For interest - comments welcome. -
neilparker62 reacted to DennisN's post in the thread Artemis 2 launch - humans return to the Moon after 54 years with
Like.
Some gorgeous photos here: Artemis II Lunar Flyby (NASA) Quote: "The first flyby images of the Moon captured by NASA’s Artemis II... -
neilparker62 replied to the thread Artemis 2 launch - humans return to the Moon after 54 years.Some snapshots taken from the live stream. Times as recorded on my cellphone. GMT+2 23:49 01:54 02:07 02:09
-
-
neilparker62 replied to the thread Artemis 2 launch - humans return to the Moon after 54 years.ditto from Nairobi, Kenya!
-
Supposedly the bullet ant has the most painful sting of any insect
-
neilparker62 replied to the thread Insights AI Enriched Problem Solving.May I respectfully submit that the article did not have any intention to compare human solutions with AI solutions nor indeed to compare...
-
neilparker62 replied to the thread Solve the quadratic equation involving sum and product.The roots of the equation in part (i) are the same as the roots in part (ii). Since in both cases we have equations of the form ax^2 +...
-
neilparker62 replied to the thread Insights Remote Operated Gate Control System.Thanks for the comment(s). Re functions: Yes - the AI engine wanted to go that way but I got a little confused by all the "defs" it came...
-
neilparker62 reacted to Paul Colby's post in the thread Insights Remote Operated Gate Control System with Like.
Cool project. State machines can be very effective. I find the design pattern used here kinda ugly. For certain, it works, but an...
-
neilparker62 reacted to DaveC426913's post in the thread There Be Monsters by Dave Collins with Like.
I finished - and printed - my collection of short stories! There Be Monsters A collection of fantastical maritime-themed short stories...
-
neilparker62 replied to the thread Prove that ## 4\tan^{-1}\left[\dfrac{1}{5}\right]- \tan^{-1}\left[\dfrac{1}{239}\right]= \dfrac{π}{4}##."All in one" derivation of compound angle formulae - based on the video construction.
-
-
neilparker62 replied to the thread Prove that ## 4\tan^{-1}\left[\dfrac{1}{5}\right]- \tan^{-1}\left[\dfrac{1}{239}\right]= \dfrac{π}{4}##.Neat geometric derivation of ##\tan(A+B)=\frac{\tan A + \tan B}{1-\tan A \tan B}## if we divide all terms in ##\frac{ay+bx}{by-ax}## by...
-
neilparker62 reacted to Steve4Physics's post in the thread Prove that ## 4\tan^{-1}\left[\dfrac{1}{5}\right]- \tan^{-1}\left[\dfrac{1}{239}\right]= \dfrac{π}{4}## with
Informative.
For an essentially geometric proof (no standard trig' identities used) see this 3 minute (appox.) video. -
neilparker62 replied to the thread Prove that ## 4\tan^{-1}\left[\dfrac{1}{5}\right]- \tan^{-1}\left[\dfrac{1}{239}\right]= \dfrac{π}{4}##.$$\tan x=\frac{1}{5} \implies \tan2x=\frac{5}{12} \implies \tan4x=\frac{120}{119}$$ $$\tan \left( \tan^{-1} \left( \frac{1}{239}...
-
neilparker62 commented on neilparker62's profile post.It will highlight your solution as well as illustrate a treasure trove of underlying geometry 'dug up' by AI. I will include an...
