4 ms·
I like calculator quirks like this. I remember as a kid playing with the number pad and noticing a geometric center of mass in number sequences ┌───┬───┬──
by tetris11 1y ago
I like calculator quirks like this. I remember as a kid playing with the number pad and noticing a geometric center of mass in number sequences
┌───┬───┬───┐
│ 7 │ 8 │ 9 │
├───┼───┼───┤
│ 4 │ 5 │ 6 │
├───┼───┼───┤
│ 1 │ 2 │ 3 │
├───┼───┼───┤
│ 0 │ . │ │
└───┴───┴───┘
I remember seeing that (14787 + 36989) / 2 would produce 25888, in that the mean of geometric shape traced by the two sequences would average out in the middle like that
- nashashmi 1y ago14789 + 36987 / 2 would do the same thing. Why trace back?
- dfee 1y agoSo would 147 and 369. As it’s just an average, per digit, I’m not sure this is very interesting.
- gowld 1y agoBeing curious is delightful.
- huflungdung 1y ago[dead]
- tetris11 1y agoJust to show that you could - 14861 and 36843 gives 25852
- nasvay_factory 1y agoi remember the 1110 thing on a calc as well. 741 + 369 & 963 + 147 | 123 + 987 & 321 + 789 (left right | up down) 159 + 951 & 753 + 357 | 258 + 852 & 456 + 654 (diagonally | center lines) the design of a keypad... it unintentionally contains these elegant mathematical relationships. i call this phenomena: outcomes of human creations can be "funny and odd", and everybody understand that eventually there will be always something unpredictable.
- sim7c00 1y agoita intuited knowledge, which is only later understood. (itzhak bentov, stalking the wild pendulum)
- nonethewiser 1y agoThe even simpler example is more striking imo. (147 + 369) / 2 = 258 and (741 + 963) / 2 = 852
- tempodox 1y agoThe decimal digits clearly have a conspiracy going on.
- deepsun 1y agoThat would work in any base, I even think we would find way more interesting coincidences in base 12 (as Sumerians preferred), because it's divisible by 2,3,4,6. It's unfortunate that we have 5 fingers.
- kapitar 1y agoIf you count the sections of your four fingers with your thumb, you can count up to 12 on one hand!
- kevindamm 1y agoIf you count with each finger as a binary digit you can count up to 15 on one hand! 255 if you use both hands! More like 1023 if you also use thumbs but I prefer to use them as carry, overflow bits.
- soulofmischief 1y agoI trained myself to do this by default a very long time ago and I can't imagine counting any other way. It's so natural, useful and lends well to certain numerical tricks. We should explicitly be teaching binary to children earlier.
- ghoul2 1y agoI have always counted to 20 on one hand. even as a kid. base, lower joint, upper joint, top. times 5 - including the thumb: my motor memory is trained so that i switch seamlessly from keeping the curse on top of the finger using my thumb, and then, once i cross 16, switch to using the index finger to "cursor" the thumb.
- bitwize 1y agoGreat, now I'm getting Carrot Top flashbacks. "Dial right down the center of the phone!" For non-Americans and/or those too young to remember when landline service was still dominant, in the 90s and early 2000s AT&T ran a collect-call service accessible through the number 1-800-CALL-ATT (1-800-225-5288) and promoted it with ads featuring comedian Carrot Top. And if you don't know who Carrot Top is, maybe that's for the best.
- a13n 1y agohow did you submit this table in HN??
- _Microft 1y agoUse two or more spaces at the beginning of a line and it will be formatted as code ("<code>") and then use symbols as you like. ┌──────╖ │ OK ║ ╘══════╝ https://news.ycombinator.com/formatdoc https://news.ycombinator.com/formatdoc
- BoorishBears 1y ago┌──────────╖ │ CANCEL ║ ╘══════════╝ (for posterity)
- firefax 1y agonow there's some solid ascii, great work sir
- deleted 1y ago[deleted]