Math Is Fun Forum
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#376 Re: Dark Discussions at Cafe Infinity » Big scientists know no math? » 2013-10-11 01:58:59
Old Mac Donald had a farm, E.O. E.O. I!
#377 Re: Introductions » Nehushtan » 2013-10-06 02:31:58
Thats why I changed my avatar to scare more people! 
#378 Re: Introductions » Nehushtan » 2013-10-06 02:16:14
Do you like my new avatar? Im no longer a fierce-looking snake but a cute little teddy bear. 
#379 Re: Help Me ! » Logical Equivalence and Logical Implication » 2013-09-14 06:23:41
Does that mean the two statements are also semantically equivalent?
Consider these two statements:
I am married and I am happy.
I am married but I am happy.
They are logically equivalent. Are they semantically equivalent as well?
#380 Re: Puzzles and Games » Alarming » 2013-09-13 01:31:53
How can I get the alarm to sound at 10pm each day?
#382 Re: Puzzles and Games » Metamorphosis » 2013-09-07 08:39:40
RAIN
CAIN
CHIN
CHIP
CLIP
SLIP
SLOP
CLOP
COOP
COOL
COIL
FOIL
FAIL
FALL
FELL
show → your → work
#383 Re: Jokes » Good Jokes » 2013-08-27 20:30:09
Q: What was there before the Big Bang?
A: No matter.
Q: Heard about the guy who didnt believe in electricity until he touched the + terminal of a high-voltage DC source?
A: He was positively shocked.
#384 Re: Puzzles and Games » Easy puzzle challenge » 2013-08-25 19:30:26
The problem was meant to be easy in other words, use AMGM rather than calculus:
Next problem (more challenging this time):
#385 Re: Maths Is Fun - Suggestions and Comments » Absolutely Christmas Crackers Puzzle » 2013-08-24 09:25:58
40 crackers will be missing 1 item and 14 will be missing 2?
Correction: 11 will be missing exactly two items.
#386 Re: Computer Math » Geogebra and a rectangle » 2013-08-10 01:47:31
When I say easy
#387 Re: Puzzles and Games » Easy puzzle challenge » 2013-08-10 01:36:14
Proof?
#388 Puzzles and Games » Easy puzzle challenge » 2013-08-02 16:13:52
- Nehushtan
- Replies: 53
#389 Re: Help Me ! » Convergence in topological space » 2013-07-07 11:52:06
Any constant sequence is convergent. The proof is just trivial.
#390 Re: Puzzles and Games » Metamorphosis » 2013-06-06 00:21:04
DRAW
DREW
CREW
CROW
PROW
PROP
POOP
POOR
POUR
YOUR
DOUR
DOER
DEER
SEER
SEAR
SEAL
SELL
SELF
PLAY → FOOT → BALL
#391 Re: Puzzles and Games » Circle problem » 2013-06-05 23:24:10
Fixing anonimnystefys link: http://en.wikipedia.org/wiki/Aristotle% … el_paradox
Interesting problem. 
#392 Re: Help Me ! » group » 2013-06-01 09:58:54
#393 Re: Help Me ! » Number Theory Problems » 2013-05-17 02:34:43
It is easily checked that 677 is prime.
PS: In general:
In the above problem:
#394 Re: Maths Is Fun - Suggestions and Comments » plus signs in Latex » 2013-05-03 22:45:10
I see, so its \' rather than just ' now? Thanks.
#396 Re: Maths Is Fun - Suggestions and Comments » plus signs in Latex » 2013-05-03 11:42:35
LaTeX is not parsing the character ' at the moment. 
f(x) = x^2 :
f'(x) = 2x :