in_wolframAlpha_we_trust

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visits member for 2 years, 4 months
seen Jul 18 at 12:25

Jun
13
comment how do we interpret this integral from polar co-ordinates
@DavidH For what it's worth, I'm pretty sure he wants your interpretation of the integral.
Jun
13
comment how do we interpret this integral from polar co-ordinates
@DavidH Indeed. I did ask in the comments what he intended but he was adamant they were the same $r$.
Jun
13
answered how do we interpret this integral from polar co-ordinates
Jun
13
comment how do we interpret this integral from polar co-ordinates
Should this really be $dr$?(and not $ds$?)
May
12
comment Numerical one-step method: initial value and non consistent method
I think your explanation is good.
Apr
29
comment How can I show that ~ is an equivalence relation such that $x$~$y$ if there is a continuous path in $M$ from $x$ to $y$?
@1950RobertLewis I understand he's not a great guy, but he makes great tools. My username should really be "in_wolfram_alpha_we_trust"
Apr
29
comment How can I show that ~ is an equivalence relation such that $x$~$y$ if there is a continuous path in $M$ from $x$ to $y$?
@1950RobertLewis Who would you have me follow? :P
Apr
29
comment How can I show that ~ is an equivalence relation such that $x$~$y$ if there is a continuous path in $M$ from $x$ to $y$?
What is the definition of an equivalence relation? What properties should it satisfy? How can we show that this relation satisfies these properties?
Apr
25
revised Explanation and Proof of the fourth order Runge-Kutta method
Minor edits.
Apr
8
comment Second order Diff. Equation
Yeah, I filled in the details. It looks like that integral doesn't have a solution in terms of elementary functions. This is (I think) the best we can do.
Apr
8
revised Second order Diff. Equation
added 417 characters in body
Apr
7
answered Second order Diff. Equation
Apr
7
comment Second order Diff. Equation
Now integrate both sides of the equation.
Apr
3
awarded  Informed
Mar
16
awarded  Yearling
Jan
17
revised (Highschool Pre-calculus) Solving quadratic via completing the square
Missing term in intermediate calculation
Jan
17
suggested suggested edit on (Highschool Pre-calculus) Solving quadratic via completing the square
Jan
16
revised What is Answer Of This Aptitude Question?
This is not mathematical physics.
Jan
16
suggested suggested edit on What is Answer Of This Aptitude Question?
Jan
15
comment Splitting a sandwich and not feeling deceived
@Paul That procedure is not coalition-resistant. After the players have rolled, the cutter can make the following offer to the first chooser "I will make no cuts, then you can choose the entire cake, and we shall split it among ourselves." This leaves the other $n-2$ players empty handed.