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seen Jul 28 at 15:08

Nov
10
answered How to get monomials multiplied by each other?
Nov
10
comment Specifying coordinates for Inset on a LogPlot
True. This is because Log[20.]=2.99573227355399 You can either use Inset["Text", {3, Log[3]}] or I think using Scaled[] is better. I do not know of a way myself to have the scaling of outer coordinates be automatically reflected in the Epilog. You have to do it your self or using Scaled[]
Nov
10
comment Inconsistent results of second derivative of inverse fourier transform
I'd say it is a bug. You can see from the trace also where the different behavior is: Trace[D[u[x, t], {x, 2}]] vs. Trace[D[D[u[x, t], x], x]] shows this: !Mathematica graphics Mathematically speaking, both should give same result. Maple gives same result as you can see !Mathematica graphics
Nov
10
comment Why is FileNameJoin not working?
@matheorem, Ok, no space now between ">>" and FileNameJoin, still no error: !Mathematica graphics I am not getting it. I do not know which space that is. I removed all the spaces and it still works for me. V 9.02, windows 7, 64 bit. but not important, as long as it works for you :)
Nov
10
comment Why is FileNameJoin not working?
But it works on my system without (): !Mathematica graphics no errors.
Nov
10
comment Why is FileNameJoin not working?
try Get["input", Path -> Directory[]] and see what you get. I get the file name I created ok.
Nov
10
comment Why is FileNameJoin not working?
It works fine for me, "test" >> FileNameJoin[{Directory[], "input"}] no errors, and the file is created fine as C:\Users\me\Documents\input and I opened the file with text editor and it has "test" in it. Windows 7, M V 9.01. It might be the space you have there in the folder path? what is that & you show there in the name?
Nov
10
answered How do you ContourPlot3D an implicit function of x,y, and z?
Nov
10
comment Why is FileNameJoin not working?
did you type this in a notebook? what is aaa >> ? Did you check to see if you have a file called ` FileNameJoin[{Directory[],"input"}]` ? i.e. evaluate ` FileNameJoin[{Directory[],"input"}]` and see what it says, then go see if that file exist. btw, you code says "input" but the message you show says "input2"
Nov
10
comment Hurwitz-Lerch transcendent
The code you pasted in your question has many syntax errors. Can you post the correct Mathematica code?
Nov
10
comment Is there an open source implementation of Mathematica-the-language?
I am actually looking forward to seeing the Wolfram LRM (Language reference manual), which I assume will be published at some point in the future now that there is an official language called Wolfram.
Nov
10
comment Lists - pairing up
@ssch good question, I can't find it either, I just assumed it will work since this is a common level specification used by many other similar commands. So, I would have to say yes, but I am no expert in Mathematica specs, may be someone would know. At least it does give same results for this example. i.e {2} or {{2}}.
Nov
10
revised Lists - pairing up
added 282 characters in body
Nov
10
answered Lists - pairing up
Nov
10
comment Is there an open source implementation of Mathematica-the-language?
hi, just to make sure I understand, are you saying that the Wolfram Language is/will be an "open-source" implementation of language Mathematica?
Nov
9
comment How to negate a boolean vector?
doing ??Not shows Not is not Listable. If a function foo is Listable, then one can write foo[{....}], and then foo will automatically by applied to each element in the list. For example, if you do ??Sin you'll see it says it is Listable. For non-listable functions, you can use Map, as in Map[Not,{True,False,True}] or Not[#] & /@ v etc... So, the first thing to always check is to do ?? in order to see if a function is Listable or not.
Nov
9
comment CDF embedding in HTML
It is really VERY simple to put CDF in HTML. No need for javascript, just use the line you showed, <embed src="AGN-standaloneClear.cdf" width="1380" height="6792"> All what you have to do is manually adjust the width value and the height value to your liking. That is what I do. I set it at width="700" height="700" and see if this showed the whole Manipulate or not. If not, I adjust the numbers. It only takes one or 2 tries to get the right numbers you want. This is how I have been adding CDF's to my pages for a very long time, never had a problem. Save CDF as standalone and all document.
Nov
9
revised Plot3d of explanation of partial partial derivatives
cleaned code a bit, added links
Nov
9
revised Plot3d of explanation of partial partial derivatives
added 51 characters in body
Nov
9
answered Plot3d of explanation of partial partial derivatives