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Jul
1
comment What's a non-trivial Mathematica program involving conscious choice of stack vs. queue data structure?
M is a high level language (4th generation if you will), so most of the time, you do not need to implement these data structures since they are not needed, Mathematica commands already there to do pretty much anything you want. But if you want to implement them you can. Here is a link that shows how to library.wolfram.com/conferences/devconf99/lichtblau
Jun
30
comment To solve an equation
is c>0? if so, int = Assuming[c > 0, Integrate[(2 c - (r^2) Exp[-I 1.4746])^(0.5), {r, 0, 31.7576}]] gives the answer in Hypergeometric2F1
Jun
30
comment Specifying non-conflicting PlotTheme options
This could be a bug, as help says it is supposed to combine them.
Jun
30
comment How to use Assumptions in a Series Expansion
@MichaelE2 fyi, Wolfram alpha was smart enough to parse part of this command even in Latex! It gave back Series Sqrt, ok not exactly the full command, but very impressive none-the-less !Mathematica graphics may be in the future with more AI it will be able to process full latex input as well.
Jun
27
comment How avoid white space and tags in CDF on web page
the unwanted space can be easily taken care off with correct width and height values in your HTML command to load the CDF. Screen shot !Mathematica graphics I just used <embed src="Untitled.cdf" width="400" height="400"/> and the yellow color is because your set the page color to yellow. I just removed that. In V9, there is an export CDF in the menu, selecting export standalone CDF, you should get the same result as I have.
Jun
27
comment Maximum and mean of a multi-variate function over a restricted lattice
Please do not use UpperCaseFirstLetter, can be confusing since M commands all start with UpperCase. Using lowerCaseFirstLetter is recommended in Mathematica.
Jun
27
comment How avoid white space and tags in CDF on web page
I can't reproduce this. I do not know how you exported this. Here is screen shot on my browser for a your notebook that I exported as CDF and loaded in HTML !Mathematica graphics as you can see the brackets are not there. Did you save the CDF as standalone? I am using V 9.01 on windows, firefox. May be this behaves differently in V8. If you have V9 maybe you can try exporting it from V9 instead.
Jun
27
comment Second derivative implicit differentiation using Wolfram Alpha input?
fyi, cross posted community.wolfram.com/groups/-/m/t/283665?p_p_auth=kD3FBYSv please mention this in your question on both sites so not to waste people time duplicating answers and efforts.
Jun
27
comment Understanding Mathematica: How to write fast code?
fyi, This is useful mathematica.stackexchange.com/questions/18393/… "what-are-the-most-common-pitfalls-awaiting-new-users"
Jun
27
comment Solve prints message saying that it cannot solve my equation
There is no analytical solution for this.
Jun
27
comment Using less memory to store and manipulate specific types
fyi, I get 16 on windows 7, 64 bit, version 9.01 !Mathematica graphics
Jun
26
comment How can a power of 0 or 1 be replaced?
1 does not match x^0 but To obtain f[1], write 1 + x + x^2 + x^4 /. x^p_. :> f[p] notice the p_. pattern. This now returns 1 + f[1] + f[2] + f[4] see reference.wolfram.com/mathematica/guide/Patterns.html
Jun
25
comment How to joint symbolic expressions together
OK, but you did say joint symbolic expressions together. And Sin[x] and 1 +x +x^2 are symbolic expressions. So that is why I asked. No problem.
Jun
25
comment How to joint symbolic expressions together
So, what will the result of joining Sin[x] with 1+x+x^2 ? It can not be Sin[x] 1 +x +x^2 ? Is that what you really want? May be there is need to add ( ) around each expression then before joining. However, there is issue where M sometimes removes those ( ) around single expression as not needed. Try typing (x) in the notebook, the result will be x as the () are stripped off. I think the semantics of joining expressions needs more thought.
Jun
25
comment github api v3 repository create
That is not what I get. I get a prompt asking me to login. !Mathematica graphics only when you hit the CANCEL button, do I get the message you show. So, you need to actually sign in.
Jun
24
comment What is the relationship between Mathematica and Wolfram Desktop?
..CDF has basically been a flop people do not like to install pluggins these days. Since Java applets is full of viruses, that scared everyone from plugins. Also not everyone can install a plugin. At school, we can't install plugin at computers in the lab or the library, etc.. So not possible to use CDF's where they can be most useful, at schools. This has a lot to do with it.
Jun
24
comment What is the relationship between Mathematica and Wolfram Desktop?
but it doesn't stand up to Cocoa or .NET These are standalone apps, not something one can run in a browser like a CDF. needed a ~800 MB player it is about 200 MB? And it is one time download. HTML5 + related technologies when it comes to building a polished, robust interface This has to be a joke right? Javascript dat.GUI vs. Manipulate? ThreeJS Vs. Graphics and Graphics3D? Building UI with HTML and Javascript? I'll believe it when I see it. Please show me one advanced UI build with javascript/HTML5 now. A Full UI with all that comes with Manipulate. Not just a bouncing balls script.
Jun
24
comment How to power-series expand determinants?
use MatrixPower to evaluate g, then find its determinant using Det then take the square root of the result using Sqrt then use Series on the result.
Jun
24
comment How can I define a function that takes a list of reals?
Are you sure you want Real? This way 3 will be rejected, but 3. will be accepted. Why not check for NumericQ? but may be you really want Real.
Jun
22
comment Defining a function (but not explicitly)
You mean like this? ClearAll[f]; D[f[x, y], theta] which gives zero, and D[f[x, y], x] and D[f[x, y], {x, 2}] etc.. !Mathematica graphics