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38m
revised Problem with ReadList, record separator is not working
added formatting
21h
comment Solution to $y = x^x (1-x)^{(1-x)}$ for $x$
Here, I did it again. I wrote "to" instead of "too" and I corrected the wrong one. And now it's to late to fix it. I hate being me. :-)
21h
comment Solution to $y = x^x (1-x)^{(1-x)}$ for $x$
@DanielLichtblau :-) Er... that is just an addition to my comment above. When I realized I missed a bit it was to late too edit it... so I had to make a new comment. The ellipses are just 'cut&paste' indicators. Unless you are referring to the above closing ellipses. In that case there's no continuation. All I meant is that once one has seen that "L to gun" gesture, inverse functions are no longer a mistery... (<--- here we go again)
1d
comment Solution to $y = x^x (1-x)^{(1-x)}$ for $x$
...in 0-1 AND it's not monotonic, SO...
1d
comment Solution to $y = x^x (1-x)^{(1-x)}$ for $x$
People here are too fast in killing threads. Relax folks, give a little leeway to new users and see what happens... It's not like virginity in the Middle Ages.
1d
comment Solution to $y = x^x (1-x)^{(1-x)}$ for $x$
Actually, if you draw the function y[x] you can see that it has real values for x in 0-1, so the inverse function, restricted to reals, has two branches. One is the one you showed, the other one is the mirror of that with respect with the translated y axis at x=1/2. (It's like a "C"). And you can see that by exchanging the x and y axis in the plot of y[x] (there's a simple gesture that changes an "L" made with index and thumb into a "gun" that shows the required transformation to get the inverse of any plot, once one has seen that...)
May
19
revised A better simplification function
it's z, not a, if the result has to be z
May
17
revised Most influential and/or disrupting features introduced with new versions of Mathematica
added link to wri list of incompatible changes and a way to restore old behavior when needed
May
17
awarded  Excavator
May
17
revised Most influential and/or disrupting features introduced with new versions of Mathematica
added boldface title
May
17
comment Is FullGraphics an abandoned function? Is there an alternative?
@Mr.Wizard I updated the wiki contribution to emphasize the difference between that post and yours, and added a link to it and to WRI list of incompatible changes (which I swear was not there when I started the wiki :-) ). I do not see duplicates.
May
17
revised Most influential and/or disrupting features introduced with new versions of Mathematica
added 523 characters in body
May
17
comment Is FullGraphics an abandoned function? Is there an alternative?
When you find an answer, you might want to add a post in the mathematica.stackexchange.com/questions/43631/… thread.
May
16
comment Incorporating photos into a Mathematica-made web page
From what I remember the problem I ran into (with older versions of MMA) was that the size of the imported picture could differ from the actual size of the saved image. Are all your image dimensions (X,Y of photoshop created image, nb imported image and html saved image) the same? Could it be that the stylesheet for the html version is forcing a different magnification?
May
16
comment Incorporating photos into a Mathematica-made web page
Is the magnification level of your notebook different from the default value? I used to store notebooks by saving images in a separate folder (note 1) (like an html page) and I had to make sure the image was rescaled when imported in a notebook with a custom magnification level. (note 1) I started back in the days when notebook corruption was rife but kept doing that to have small, agile, notebooks and externally editable pictures.
May
14
answered Assign the results from a Solve to variable(s)
May
8
comment Find roots of a peak to calculate its width at 10% peak height
Let's say g is your interpolation. You might want to refine something on the lines of sampleddata = Table[{x, g[x]}, {x, a, b, step}]; Select[sampleddata, (Abs[(#[[2]] - tenpercent] < tol) &]
May
3
comment Animated Wave Propagation using Fourier & InverseFourier
I just implemented a way to compute what was asked --- oh WTF, I cannot flip back and forward from one question to the other each time. Somebody reopen the original question - marking that as a duplicate is like marking all question using NestList a duplicate!!
Apr
30
comment I don't want Erf[x]
See if this can be of some help: mathematica.stackexchange.com/questions/34589/… . You could use it as a starting point.
Apr
30
comment Animated Wave propagation using split operator method
I used the name for the general state, instead of the specific instance for your example. I have fixed it, and given you a hint on how to plot the evolution of the state. If only this question was reopened... (and frankly I don't understand why it was put on hold at all - apart for not using mathematica syntax, it was pretty clear what you wanted). I hope, once the question is reopened, you will edit it to provide meaningful values for the parameters and add a picture of the resulting plot.