Mathematics
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user44197
  • Member for 8 years, 8 months
  • Last seen more than 7 years ago
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About

I am not a professional mathematician but teach Engineering and use a lot of math.

By the way, my name is Natarajan but I like the display name 44197 as one of my favorite primes divides it.

I am semi retired and bored. I am glad I discovered this site!

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All Questions Answers
Score Newest
answer
53
Show that these two numbers have the same number of digits
Feb 22, 2014
answer
24
A prime of the form $38111111\ldots$
Jan 2, 2014
answer
16
simple example of recursive least squares (RLS)
Jan 8, 2014
answer
10
Minimizing the sum of absolute values with a linear solver
Dec 31, 2013
answer
10
Properties of the euler totient function
Jan 7, 2014
answer
9
Prove or disprove: If $A^2$ is normal matrix then $A$ is normal matrix
Dec 28, 2013
answer
8
Continuity $\Rightarrow$ Intermediate Value Property. Why is the opposite not true?
Dec 30, 2013
answer
8
Prove that $n(n^2 - 1)(n + 2)$ is divisible by $4$ for any integer $n$
Dec 23, 2013
answer
8
There exists a power of 2 such that the last five digits are all 3's or 6's. Find the last 5 digits of this number
Jan 8, 2014
answer
8
Plotting Primes
Feb 16, 2014

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