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visits member for 1 years, 7 months
seen 21 hours ago

Apr
7
awarded  Talkative
Apr
7
comment How many ways to add to 21?
@NikhilMahajan,I want to know the process for answering this particular question. Full working out is expected from a good answer, as demonstrated by the accepted answer, hence I do not need to specify in the question that I want working to be shown.
Apr
7
accepted How many ways to add to 21?
Apr
7
comment How many ways to add to 21?
No this isn't homework, and I know the answer is 880, but what is the process to figure it out?
Apr
7
asked How many ways to add to 21?
Apr
7
asked Randomized Block Design for repeated trials - Please help
Apr
7
comment A proportionality puzzle
you misunderstood my point. You said that they clearly round up because 5/2 is rounded up. In fact most countries will round up 5/2 but this doesn't mean they will clearly round up 10/3. Therefore if it is given that they round 5/2, it is no indication that they will round up 10/3.
Apr
7
comment A proportionality puzzle
The fact 2.5 rounds to 3 doesn't mean that 3.33 rounds to 4, since most mathematicians will round up .5 and greater, but will round down anything less than .5
Apr
1
asked Multiple measurements per person per treatment
Feb
25
awarded  Notable Question
Nov
16
asked The forever moving billiard ball
Oct
2
comment Surprising identities / equations
How is this formula not immediately obvious?
Oct
2
awarded  Good Answer
Sep
30
awarded  Nice Answer
Sep
29
revised closed form $f_n=\sqrt{2f_{n-1}}$ ?
added 2 characters in body
Sep
29
comment closed form $f_n=\sqrt{2f_{n-1}}$ ?
So f_1 = 2^(1 + 3/4) ?, but I thought f_1 was 2^(1/2)
Sep
29
answered closed form $f_n=\sqrt{2f_{n-1}}$ ?
Sep
29
comment Surprising identities / equations
This topic seems very intriguing, so thanks for posting +1.
Sep
28
comment Surprising identities / equations
@DanielV, it does lead to a paradox. The sum from 1 to infinity of 2^k = 2 + 2 + 2 + 2 etc. = -1 (our assumption). Now 2 = 1+1. Therefore 1 + 1 + 1 + 1 + 1 = -1. But the sum from 1 to infinity of 1^k = -1/2.
Sep
28
answered Surprising identities / equations