1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Calculus is false.

  1. Jun 6, 2015 #1
    • OP warned to not post "noise" again
    Calculus works for linear equations of the 1st order because it is simple geometry, and that cannot be faulted; one does not need calculus for this. Now take a second order equation, the simple function: y = x^2. From rudimentaries, detay y / deltax = 2x + delta x. That is the EXACT equation for the slope. One can make delta x as small as one wants, however the slope changes. Bringing delta x to infinity, and delta y follows, is the manner in which, all calculations are consistent, but not right. Infinity, as is well known, does not exist, for it is a mathematical trick for some aspects of mathematics to exist. Calculus is a manner in which, to normalise calculations throughout the mathematical and engineering field. Comments please.
     
  2. jcsd
  3. Jun 6, 2015 #2

    micromass

    User Avatar
    Staff Emeritus
    Science Advisor
    Education Advisor
    2016 Award

    Are you familiar with epsilon-delta definitions which prove the correctness of the equations?

    Are you aware that there is ton of observational evidence for calculus?
     
  4. Jun 6, 2015 #3
    At least you could try to phrase your ideas coherently if you're trying to refute such a successful mathematical theory...
     
  5. Jun 6, 2015 #4

    OldEngr63

    User Avatar
    Gold Member

    Wow, Cruz! That is asking a lot. How can one hope phrase their ideas coherent when doing something fundamentally incoherent? It took a lot of guts for the OP just to put his thoughts up; it is too much to ask that they make sense too!
     
  6. Jun 6, 2015 #5

    phion

    User Avatar
    Gold Member

    In before lock.
     
  7. Jun 6, 2015 #6

    phinds

    User Avatar
    Gold Member
    2016 Award

    :DD
     
  8. Jun 6, 2015 #7
    I meant grammatical coherence :D
     
  9. Jun 6, 2015 #8

    Mark44

    Staff: Mentor

    It's locked now...

    To the OP: A lot of what you wrote was incorrect; in particular, your formulations for ##\frac{\Delta y} {\Delta x}## and your idea that we take ##\Delta x## to ##\infty##. Please do some research before making absurd statements about calculus "being false."
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Calculus is false.
  1. True of false? (Replies: 5)

  2. Why is this false? (Replies: 3)

Loading...