Man, calculators with fraction support weren’t all that common when I was in school.
Now imagine having a calculator with symbolic math support and the ability to solve derivatives and integrals with unknown variables. And I took that shit into the SAT because the TI nspire CX CAS was allowed. (Apparently that changed just this year holy moly)
look for ≈ on your calculator, try 22/7, the answer may surprise you
Probably my favorite approximation of pi. With four symbols, you have like 18 digits.
Do you, though? Pi starts 3.141592, but 7/22 starts 3.142857, already wrong by the 4th digit.
355/113 is my favorite
Using 7 chars to represent 8. Now that's efficiency!
The efficiency is that it is easy to remember 11 33 55
If you want efficiency, just remember the number and cut the operation.
2 4/7
Check your settings
Actually it makes sense to calculate "analytically" (symbolically) as long as possible and only after that doesn't help anymore, go to "numerical" calculations.
but there's a more important math question,
with heavy and deep philosophical implications...
What's
9 + 10
it's an old one
i missed it too initially
but you bette remember the answer, it will be on the exam :)
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