Geometry Re-education

Discussion in 'Miscellaneous [BG]' started by bholder, Feb 25, 2024.

  1. bholder

    bholder Affable Sociopath Gold Supporting Member Supporting Member

    Sep 2, 2001
    Vestal, NY
    Received a gift from Sire* (see sig)
    I ought to know how to do this, but I've got "old man's brain" today... So, I've got 2 points on a circle, and the distance between them, and also the distance from that line to the circle at the mid-point of the line. How do I determine the radius of the circle? Drawing a blank...
     
    DJ Bebop likes this.
  2. Oddly

    Oddly

    Jan 17, 2014
    Dublin, Ireland.
    Yeah, I'd just walk away if I were you.
     
    retslock, bassman4jc, noahw1 and 10 others like this.
  3. I are smart.
     
  4. bholder

    bholder Affable Sociopath Gold Supporting Member Supporting Member

    Sep 2, 2001
    Vestal, NY
    Received a gift from Sire* (see sig)
    I used-to-was-kinda smart, but yeah, anyone else remember reading "Flowers for Algernon"? The moment the human subject (now genius level) discovers the test rat's "rat genius" results aren't permanent and are fading away? Yeah, that's me. i know I'm losing it...
     

  5. I'm dumb aboot many things, maths/geometry being the chart topper.
     
  6. bholder

    bholder Affable Sociopath Gold Supporting Member Supporting Member

    Sep 2, 2001
    Vestal, NY
    Received a gift from Sire* (see sig)
    I scored 100 on the NY State Geometry Regents exam in 10th grade, and got a max rating "5" in AP Calc, so it should be easy. But... hehe... Realized I have 3 points, the two ends and the midpoint, that's enough, now something about them all being equidistant from the center of the circle... some something squared and then a square root something hehe
     
    eddybuzzard and 5StringBlues like this.
  7. dave64o

    dave64o Talkbass Top 10 all time lowest talent/gear ratio! Gold Supporting Member

    AP Calc in high school and a math minor as an undergrad. But, in the nearly 40 years since then, all I’ve used is some basic statistics. I got nothin’. :(
     
    5StringBlues likes this.
  8. When I think back on all the crap I learned in high school it’s a wonder I can think at all.
     
  9. DeltaPhoenix

    DeltaPhoenix Supporting Member

    Apr 6, 2011
    Gainesville,FL
    Pi*R^2
     
    Aledal, jdwinva, Dang75 and 2 others like this.
  10. bholder

    bholder Affable Sociopath Gold Supporting Member Supporting Member

    Sep 2, 2001
    Vestal, NY
    Received a gift from Sire* (see sig)
  11. bholder

    bholder Affable Sociopath Gold Supporting Member Supporting Member

    Sep 2, 2001
    Vestal, NY
    Received a gift from Sire* (see sig)
    Pie are round. Cake are squared. :p
     
    Bassdirty, lark_z, BlueTalon and 6 others like this.
  12. Killing Floor

    Killing Floor Supporting Member

    Feb 7, 2020
    Austin, TX
    Mechanical Engineering degree and have a math minor. Haven’t used anything beyond single variable algebra since the last exam.
     
    Grinderman, Winslow and dave64o like this.
  13. Sam Evans

    Sam Evans

    Nov 29, 2008
    This is why God gave us ChatGPT.
     
  14. Hoochie Coochie Man

    Hoochie Coochie Man Supporting Member

    Jul 14, 2014
    The Chequamegon
    HaphAsSard, Winslow and mikewalker like this.
  15. Jeff Scott

    Jeff Scott Rickenbacker guru..........

    Apr 11, 2006
    NEOhio
     
  16. No one told me there would be math in this thread and I've misplaced my slide rule
     
    oldandbold, rocu, Jeff Scott and 2 others like this.
  17. You can’t draw a straight line in old basses without referencing the parallel equivalence of p-bass pickups vs the greatness of tone. I also didn’t see anything divided by entwistle/pino + budget. Good luck.
     
    mikewalker likes this.
  18. smeet

    smeet Gold Supporting Member

    Nov 27, 2006
    Woodland Hills, CA
    I believe it as simple as:

    C = distance between points (chord length)
    D = distance from center of line to circle center
    R = radius

    You have a right triangle where the hypotenuse is R, and the other two sides are C/2 and D.
    So, R**2 = (C/2)**2 + D**2
    Take square root of both sides and:
    R = sqrt((C/2)**2 + D**2)
     
  19. mikewalker

    mikewalker Supporting Member

    Jul 30, 2017
    Canada, Eh!
    Wow. I took algebra up through grade 12 (starting slinking away from math at the sight of calculus) and I don't recall ever hearing about "chord lengths"! Maybe they're called something different in Canada? :unsure:
     
    Spidey2112, Jeff Scott and Andre678 like this.