26 thoughts on “Calculator Number Trick: rectangle patterns

  1. Who leaves a 2x2x2 like that???
    I still gave this video a like, but…
    Idk…I'm gonna be checking that,
    my OCD just got maxed out >D

  2. You can swipe left and right on the home bar to switch apps without moving up to bring up the app switcher

  3. Since you like shapes, who doesn't, I picked up a "Euclidean Cube" and have been baffled with it's many hidden faces even though it's a "fairly simple" joining of a few squashed looking Tetrahedron's linked together by the edges (with some magnets as well). I'd love to see if there are any interesting properties about it that a aren't as obvious to those of us that haven't studied math as much. You can even put a bunch of them together to make even crazier looking objects and at the moment find it as my most interesting cube shaped desk toy. Also if you know of any other cube shaped desk toys I'm all ears, I have a collection growing at this point.

  4. also works for "diamond" patterns (eg 4862), "hexagon" patterns (eg 148962), and "6-digit triangle" patterns (eg 159632) !!

  5. Found a pattern you might enjoy:

    1254/11 = 114
    4521/11 = 411
    8965/11 = 815
    5698/11 = 518
    7854/11 = 714
    4587/11 = 417
    ect.. ect..

    I need to stop procrastinating my exams now.

  6. The pattern actually works with any parallelogram you can draw with the buttons! Even if you use 0, although you have to pretend it's underneath the 3 (where it should be)

  7. It doesn't even need to be a rectangle. You just need to make a loop. E.g. 793254
    And it can even have loops: 12541397

  8. I would like to remind you that parallelogram is a very broad term, and thus caution against saying "any parallelagram" would work on your admittedly ridiculous calculator face. "241513" is not a multiple of 11, despite being the concatenation of the four corners a parallelagram in counter-clockwise order (2, 4, 15, and 13), because squares are technically paralellagrams.

  9. there is an interesting pattern with the quotients. For example, take the number 7,843. the leftmost digit of the quotient is equal to the leftmost digit of 7,843. the next digit is equal to the third digit of 7,843 minus the last digit. and the last digit is equal to the last digit, so we arrive at the number 713.

  10. It also works for the square of height/length 0, say 5665. Call them degenerate solutions? I wonder how you would go about this in a hypercube situation. I guess you would need an orientation – maybe the orientation of two simplicies of the same dimension as the cube glued together? Or I guess the simplicies could be any dimension, really. I would investigate this but, you know, exams 🙁

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