Originally posted by lemondrop(4+4)-(4-4)=0 that was easy...
how many numbers in succession starting with zero can anyone do?
post you solutions
can anyone do the fist 15 or more?
+, -, x, /, (), ^, log, square roots, decimal points, factorials, double factorial, etc. are a few math symbols that can be used
Good luck!
4 edits
Originally posted by forkedknightYou need to get the parenthesis stuff right to be accurate, your (4+4)/4+4 could be taken as zero as it stands.
4+(4-4)/4 = 4
4 + (4/4)^4 = 5
(4 + 4)/4 + 4 = 6
To be accurate you need (((4+4)/4)+4)=6.
or ((4+4)/4)+4=6, a bit simpler but it does come out as 6 as written, on my casio calculator.
The first example, 4+(4-4) could be taken as 4 then divide by 4 would be 1 if not clarified by parentheses, but as you wrote it, my calculator brings it out as 4.
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Originally posted by lemondropHe is getting those results running it through a Casio calculator or some other brand that uses the order rules. It comes out as four running through a casio.
4+(4-4)/4=1 not 4
your equation for the number 5 is also incorrect
It still can be taken as 1 by someone not following the same order rules.
I think it should be given with proper parentheses to eliminate such confusion.
2 edits
Originally posted by forkedknightIf you do the math first, it works but I cannot enter it as shown on my casio calculator.
4!/sqrt(4) + 4/4 = 13
On my TI84 it doesn't seem to have a factorial function so I have to do it this way🙁(4*3*2)/(sqr(4))+(4/4) to get 13 which is cheating🙂
You could write a user defined program as a factorial and use that instead I guess. Surprised they didn't include factorial on the TI84.
I'll try it on my trusty rusty HP48, see what I get in reverse polish. Don't have time right now.
3 edits
Originally posted by lemondropFor sure! Otherwise there can by several interpretations of the outcome.
parentheses are absolutely necessary to avoid any ambiguity
Like 4^4+4/4, is that 257 or 65?
If you want the outcome to be 65, you go (4^4+4)/4 (4^4=256 plus 4=260 /4 =65
If you want it to be outcome to be 257 you go (4^4)+(4/4) 4^4=256 plus 4/4, (1)=257.
Everyone needs to get up to speed on this issue.