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Nov
25
comment What is the probability that he counts head more that tails when tosses a coin 6 times
+1 simple , short and can be used for arbitrary number of tosses without increasing the number of calculations
Nov
25
revised Is it possible to define $\lceil x\rceil$ in terms of $\lfloor\ldots\rfloor$?
changed \le to \lt, otherwise the proof is wrong, typos
Nov
24
revised Show that the derivative of a function is not continuous
added that g'(0)!=0
Nov
24
comment Show that the derivative of a function is not continuous
The special thing is that g' is not continous at 0. Otherwise lim g'(x_n)=g'(0). The word continous appears in the title. there is no reason to repeat it in the body of the message.
Nov
24
comment Show that the derivative of a function is not continuous
@zhw why do you think your title is more descriptive?
Nov
24
answered Simple fraction calculation
Nov
23
comment Simple fraction calculation
-1, for the error Daiel mentioned
Nov
22
comment Tigers and lions attack if they are hungry or threatened.
@barak manos: 1)Yes, the downvote is from me. 2) It is up to me to decide if a reason is good enough for a downvote and not to you to decide this. 3) It is not my "personal biological opinion" but it follows from wikis definition of hybrid speciation that these are new species. 4) $\land$ is the intersection of two classes and using these hybrid species makes this less clear and so I do not like it
Nov
22
comment Tigers and lions attack if they are hungry or threatened.
I think 1. is funny but is wrong. A tigon is neither a tiger nor a lion (that is why it is called tigon). the same is true for ligers. So sentence 1. means: "if something is a tiger and a lion (which is not possible), then ..."
Nov
22
comment Prove that $\pi>3$ using geometry
How do you want to show something about pi if you have not definition of it?
Nov
22
comment Prove that $\pi>3$ using geometry
How is pi defined?
Nov
20
comment Standard terminology for the “quotient of a quotient”
so $q_k =n \mod m^{k+1}$
Nov
20
comment Show that the derivative of a function is not continuous
you get $g'(x_n)= \frac{4}{\frac{\pi}{3}+ 2n\pi}\sin (\frac{\pi}{3}+ 2n\pi)$. This converges to $0$
Nov
20
revised Show that the derivative of a function is not continuous
changed title
Nov
20
revised Show that the derivative of a function is not continuous
derivate is not continous
Nov
20
revised Show that the derivative of a function is not continuous
added 95 characters in body
Nov
20
comment Show that the derivative of a function is not continuous
the title of our post is strange.
Nov
20
revised Show that the derivative of a function is not continuous
added 11 characters in body
Nov
20
revised Show that the derivative of a function is not continuous
latex: fravtions
Nov
20
answered Show that the derivative of a function is not continuous