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1h
revised Expand just first level of an expression
Added image
1h
answered Expand just first level of an expression
1h
comment Expand just first level of an expression
The form of your equation is Equal[Power[..], Plus[..]], so the only power in the first level is the left-hand side of the equation. Is that what you exactly what you want expanded?
1h
revised Command to take the first elements of a list that match a pattern
added 22 characters in body
7h
comment Proof that $(1+\epsilon)^n = O(1+n\epsilon)$
I think you want $(1+\epsilon)^n-1 = o(n\epsilon)$ or $(1+\epsilon)^n-1 = O(\epsilon)$, assuming $n$ is fixed and $\epsilon\rightarrow0$. It turns out $O(1+n\epsilon)=O(1)$. But this site is for the software Mathematica. For questions about mathematics, consider Szabolcs's suggestion. Unless you consider the output of Series[(1 + ε)^n - 1, {ε, 0, 0}] a proof.
7h
comment Computing a map between two lists
This is a nice representation of the problem, especially (imo) without the Values, in which it actually is a mapping instead of the OP's stripped down representation of one. (+1)
7h
answered Computing a map between two lists
9h
reviewed Close Wrong Definite Integral result
16h
revised Command to take the first elements of a list that match a pattern
Responded to change in original question
16h
comment How to separate factors by dependent variables (arguments)?
@JerryGuern You're welcome. See my update for an explanation of your replacement rule.
16h
revised How to separate factors by dependent variables (arguments)?
Responded to updated question
19h
answered How do I display the parameter value in animate, similar to how it's done in manipulate?
20h
comment How do I display the parameter value in animate, similar to how it's done in manipulate?
@Mr.Wizard et al., Animator runs in the front end. The front end clocks the animated variable and triggers the updates when the kernel is ready. That may be the problem. (Mr. Wizard's example doesn't use the kernel at all when it's running.)
21h
comment How do I display the parameter value in animate, similar to how it's done in manipulate?
The option Appearance -> "Labeled" is new in V10. See "Show Changes" in the docs for Animator.
21h
comment How to solve ArcSinh equation for many differents parameters?
@Mr.Wizard Embarrassingly, no. This has come up before, at least the way I look at it. I've solved it several times in several ways myself, sometimes for myself. (I have a way of parametrizing an implicit curve by arc length, but I have yet to find a question to use it in an answer. This is close, but they wanted y = f[x].) Here I tried to give an answer to a generalized question and hope future site visitors might find it useful. I asked two of the chief numerics guys are WRI about this kind of problem, and so I'm feeling confident, too.
23h
revised How to do algebra on unsolved integrals?
Added extension
23h
answered How to solve ArcSinh equation for many differents parameters?
1d
comment How to do algebra on unsolved integrals?
@belisarius If the domain of integration is fixed throughout the problem, Jerry could probably do the algebra with indefinite integrals. They seem to work better.
1d
comment How to do algebra on unsolved integrals?
@belisarius It's an odd/even bug. Works on even-numbered days.
1d
comment How to do algebra on unsolved integrals?
@JerryGuern Neat. I'm sure I tried that and the constants did not come out of the integrals (for h). Then Solve wouldn't work.