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1d
answered Image of $x$ under canonical projection is root of polynomial.
2d
comment Using the complex logarithm as a conformal mapping,
If $z$ is in the upper half plane, $\sqrt{z}$ is in the first quadrant, and $ \dfrac{i\sqrt{z}-1}{\sqrt{z}-i}$ is in the left half plane outside the unit circle. You want to take a logarithm of that, but not the principal branch logarithm because you don't want a branch cut running through this region.
2d
comment Origin of the Integral (Theory Behind It - How it came about)?
You might look at www-history.mcs.st-andrews.ac.uk/HistTopics/…
2d
comment Solving a system of non-linear equations with 10 equations and 10 unknowns
${5 \choose 3} = 10$.
2d
comment Let p be an odd prime number. Then show the following:
What is $K_p$? What is $C_p$?
2d
comment Research Strategy Question
The year 2000 is not old! You're making me feel like a dinosaur. But seriously, mathematics does not get outdated so quickly. There are plenty of 30 or 40 year old unsolved problems that are still worth pursuing and may now be more accessible because of newer results and techniques. Of course, before trying one of these you should search the literature to see if it has already been done.
2d
answered Counterexample to a variation on “The politician theorem”.
2d
comment How can you do algebra with rounded numbers?
If you write the constraints corresponding to the "equations" in the form $a_i \le x \le b_i$, then the result is $\max(a_i) \le x \le \min(b_i)$.
2d
comment Laplace-Stieltjes :Functions of independent random variables
en.wikipedia.org/wiki/…
2d
comment Probability that after 10,000 steps (+-1) you'll end up at the origin. How to use Central Limit Theorem?
There is no disagreement between me and Did on this.
2d
comment What is a linear functional on continuous functions on the real line not given by a measure?
@MichaelHardy Not a positive linear functional.
2d
revised Solving a system of non-linear equations with 10 equations and 10 unknowns
added 195 characters in body
2d
revised Solving a system of non-linear equations with 10 equations and 10 unknowns
added 195 characters in body
2d
answered Solving a system of non-linear equations with 10 equations and 10 unknowns
2d
answered Operations with probability distributions
2d
answered What is a linear functional on continuous functions on the real line not given by a measure?
2d
comment Laplace-Stieltjes :Functions of independent random variables
The definition of probability generating function is only for discrete random variables taking values in the nonnegative integers.
2d
comment Split Factorial of n
See OEIS sequence oeis.org/A200743
2d
answered Finding the best direction for a bird escape from a radiation (function of 3 parametres)
Jun
30
comment Probability that after 10,000 steps (+-1) you'll end up at the origin. How to use Central Limit Theorem?
No, that's muddled. There is a weak version of de Moivre-Laplace that is a special case of CLT. The strong version of de Moivre-Laplace, that talks about the probability mass function rather than the cumulative distribution, is what we can use here.