14,577 reputation
32349
bio website uclue.com
location Knoxville, TN
age 61
visits member for 4 years
seen 5 mins ago

Enjoys programming in Prolog. Will solve math problems for food.

Rosser's trick: "For every proof of me, there is a shorter proof of my negation".

This is not the baggage check described by Article 4 of the Warsaw Convention.


1h
comment Kinematics of gravity in a non uniform field
The solution of "free fall" radial trajectories under a central attractive force (gravity) is given in Free-fall according to Newton's gravitation law, so this may possibly duplicate your Question.
1h
comment Kinematics of gravity in a non uniform field
@PhzksStdnt: You can always post Comments on your own Question, when you are logged in.
4h
comment Kinematics of gravity in a non uniform field
When you say "non uniform gravity", do you mean simply that the force depends on radial distance?
5h
revised path connectedness of space of almost commuting matrices
missing mathjax delimiter supplied
9h
comment How to find the maximum and minimum of $\dfrac{\sin x}{x^2+1}$?
@mvw: Heh, I use it so rarely that I can't remember which comes first, the > or the !, so at first my spoiler was spoilt.
9h
reviewed Edit Equivalent sentences using logical connectives
9h
revised Equivalent sentences using logical connectives
applied mathjax formatting
9h
revised How to find the maximum and minimum of $\dfrac{\sin x}{x^2+1}$?
Incorporated question from title into body of text
10h
comment show that $\mathbf Q(\sqrt2,\mathrm i)=\mathbf Q( \sqrt2+\mathrm i)$.
@anoanoanoano: No apology needed! Welcome to Math.SE.
10h
reviewed Reviewed show that $\mathbf Q(\sqrt2,\mathrm i)=\mathbf Q( \sqrt2+\mathrm i)$.
10h
comment show that $\mathbf Q(\sqrt2,\mathrm i)=\mathbf Q( \sqrt2+\mathrm i)$.
One question is being asked in the title, and a different (related) one in the body. Please put the entire problem statement in the body for the sake of completeness.
10h
reviewed Reject suggested edit on Prove $\left|\frac{z_1}{z_2}\right|=\frac{|z_1|}{|z_2|}$ for two complex numbers
10h
comment About restricting variables in an integrand, and also changing the look of an integrands.
Actually, why not edit your Question (no Answers so far) to raise that issue?
10h
comment About restricting variables in an integrand, and also changing the look of an integrands.
Since the sign of $x^2 - 1$ can change along the real axis, it's germane to symbolic integration routines to restrict $x$ to subintervals where it does not change sign, in order to form expressions valid in those restricted intervals.
10h
comment How do I show that the derivative of the path $\det(I + tA)$ at $t = 0$ is the trace of $A$?
It's a nice exercise, but you should have the complete problem statement in the body of the Question, not relying on the title alone to give the important specifics.
11h
revised How to find the maximum and minimum of $\dfrac{\sin x}{x^2+1}$?
typo for "first quadrant"
11h
revised How to find the maximum and minimum of $\dfrac{\sin x}{x^2+1}$?
added spoiler for fixed point iteration
11h
answered How to find the maximum and minimum of $\dfrac{\sin x}{x^2+1}$?
12h
comment How to find the maximum and minimum of $\dfrac{\sin x}{x^2+1}$?
What we can tell "by inspection" is that the maximum will occur (as you note) near the middle of the "first quadrant" (since the ratio of $\sin x$ to $x^2 + 1$ oscillates with ever decreasing amplitude as $x \to \infty$). Since this is an odd function, the minimum will occur at the reflection of the maximum in the origin.
21h
comment Looking for numerical methods for finding roots of convex vector function ${\bf f}({\bf x})={\bf 0}$
Is there any information about the size of $m$ relative to $n$?