Your Calculator is Wrong!

Nate the Mathematics Guy Episode 1: Your Calculator is Wrong!
The math guy explains why you shouldn't always trust your calculator and introduces the problem of aliasing. If you've ever re-sized a digital picture and it looked jaggy, or overcompressed a video and it looked jaggy, then you are already familiar with the aliasing problem.

Virtual calculator can be found at: http://www.graphcalc.com

Category:

Howto & Style

Tags:

• nate
• math
• mathematics
• guy
• calculator
• aliasing
• antialiasing
• lanczos
• digital
• image

[ifhgsfj]

NATE THE MATHEMATICS GUY

NATE

NATE

NATE

NATE

NATE

NATE

[braulmon]

nerd.i mean i myself am REALLY smart.and yes imafirenmahlazor123, u copied bill nye the science guy. plus the introduction looks like it was copied by mythbusters.

[Vermiliontea]

That's exactly the kind of problems you might run straight into, and still not having a clue, - if you just see and enter the algebraic expression from left to right, and don't understand or care how to calculate the expression. This is why infix/algebraic calculators shouldn't be used in education. On my old first generation HP 49G in 'exact' + RPN mode, I do:

3 1/x 'x' STO 7 'y' STO 1 ENTER x y 1 - 2 / * - EVAL x 3 ^ EVAL ^

And correctly get 0. 'RPN' is "do by hand", while "thinking".

[DinoDyl]

I lost it at 0:35

[GrizzlyBombify]

hahaha my calculator worked!

[alessan]

@austin777136

Let me rephrase, as I did not have the space to say it the best way I could.

"0^0 = 1" is an axiom, it's effectively 'set' to that value for the sake of being incredibly practical and stopping us from needing to impose special cases on various elegant and vital formulae.

At a higher level it deserves reanalysis and restatement as: The limit of x^x as x tends to 0 is 1. And that is 100% correct.

[austin777136]

@alessan 0^0 is undefined.

[keoni29]

Thumbs up if you stopped watching at 6:35

[b2639]

any1 aware that he typed x^3 in the calculator?

[260830107]

my Sharp EL-W516 writeview calculator gave me the right answer :(

[alessan]

Your calculator is wrong. Mine, on the other hand, has quite correctly responded to my input.

Including the graphical functions too, actually.

Understanding what display parameters to use with the intent of most closely rendering a desired function is the human's responsibility.

It is just a tool that mirrors our own abilities, if anything is wrong it is we..

Oh, and 0^0 = 1.