The math behind a neat calculator trick(divisbyzero.com)
divisbyzero.com
The math behind a neat calculator trick
http://divisbyzero.com/2010/02/17/the-math-behind-a-neat-calculator-trick/
18 comments
If you want to work it out yourself first here is the trick. Set calculator to degree mode, enter a bunch of fives (5555 or 55555555), take the reciprocal, take the sin, note similarity to pi. Very fun article.
While the trick is quite nice, I personally just press the "PI" button...
Calc's are funny.
Try 12345679 * 9x (where x < 10)
Try 12345679 * 9x (where x < 10)
So what will happen? (tried on all my calc's and they gave the same result as http://www.google.com/search?q=12345679+*+92, which I think it's correct).
Try 123456789 * 9 * 2.
Here is how to get e using a calculator:
sinh(1) + cosh(1)
sinh(1) + cosh(1)
pi / 180 = 0.01745 (a value commonly used for degree<->radian conversion). 1 / 180 = 0.0055555. That's the connection between the "magic" constants used in this trick.
It brings an older, simpler, not nearly as interesting calculator "trick" to mind: 11111111 * 11111111.
It brings an older, simpler, not nearly as interesting calculator "trick" to mind: 11111111 * 11111111.
It brings an older, simpler, not nearly as interesting calculator "trick" to mind: 11111111 * 11111111.
gnuplot> pr 11111111 * 11111111
-2047269199
Much too highbrow for me.
39103 * 136
Then turn your calculator upside down and read the result.
39103 * 136
Then turn your calculator upside down and read the result.
Sure, but can anyone explain 5318008?
Walking upright shifted our focus away from butts?
for those of you who didn't get it
http://www.urbandictionary.com/define.php?term=5318008
http://www.urbandictionary.com/define.php?term=5318008