# Tagged Questions

For questions specific to Version 8 of Mathematica.

558 views

### mathematica startup time

I have Mathematica 7 and 8 installed on my laptop. Mathematica 7 starts quite fast, but Mathematica 8 is extremely slow to start. In the Option Inspector I canceled the "welcome screen" option at ...
1k views

### Problem with plotting eigenvalues

I want to plot the eigenvalues of a matrix which is dependant on a parameter (well, actually I want to plot a tight-binding electronic band structure). The dimension of the hamitonian matrix is ...
449 views

### Using DistributionFitTest on custom distributions in Mathematica 8

I originally posted this question on Stack Overflow, but I didn't get any answers, and I'm hoping to have better luck here. I'm trying to compute the goodness-of-fit of a bi-modal Gaussian ...
232 views

### How to evaluate this indefinite integrate $\csc(4x)\sin(x)$

I tried to integrate the following integral using Integrate[Sin[x]Csc[4x],x] and I am getting a strange result. \frac{1}{8 \sqrt{2}}\left(-2 i ...
96 views

### An recurrence equation that can be solved in version 7 but not in version 8

A friend of mine showed me this code sample: RSolve[{a[n] == a[n - 5] + 1, Sequence @@ Table[a[i] == 1, {i, 5}]}, a[n], n] // Timing It's solved by version 7 in ...
150 views

### Version 7 and 8, different behavior of NSolve. Is it reproducible?

I noticed the following difference, and I wonder if it's a problem of my system or the results difference is actually due to the two different versions ...
102 views

### Discrepancy with TakeWhile between RandomInteger result and list on Linux

I have to following code that solves a problem for me. The example that is given to us is as follows: lst = {1,-2, 3, 4,5,-3, -4, 9,7,0,8}, predicate = ...
930 views

### PlotLegends doesn't work on Plot3D-V8.0.0

I am trying to plot in 3D and I need to use PlotLegend. My code is ...
205 views

### Break[] inside ColorFunction

f[x_?NumericQ]:= (Do[Break[],{i,1,2}];x) Plot[x,{x,0,1},ColorFunction->(ColorData["Rainbow"][f[#]]&)] Break::nofwd: No enclosing For, While, or Do found ...
647 views

### Mathematica 9 does not read mathematica 8 “.mx” files

Having written a lot of code on M8, I recently switched to M9 and tried to run the code on M9, the code starts by loading an .mx file written by M8, but M9 wouldn't read the .mx file saying that it ...
367 views

### LogPlot axes labels destroyed when working in high precision

(I'm using Mathematica 8.) I have a Taylor series: poly = Normal[Series[E^x, {x, 0, 10}]] I want to produce a log-linear plot of the error. This is easy enough ...
3k views

### Install trial version of Mathematica 9 next to genuine Mathematica 8

This morning I installed the trial version of Mathematica 9. After I discovered that Export[] is disabled in trial versions, I wanted to use my genuine Mathematica ...
759 views

### What calendar is Mathematica using for dates in the distant past?

It appears that Mathematica treats all dates as proleptic Gregorian dates by default, a hypothesis that can be easily tested by using AbsoluteTime to compute the ...
139 views

### Strange behavior of DateList when converting string

DateList experiences some strange behavior which i cannot explain. This code works fine: ...
268 views

### How do you use SystemsModelFeedbackConnect?

I'm trying to grasp the new control system functions in Mathematica 8. I'd like to connect a controller model to a model of a plant to simulate the behavior of the system. I define a simple servo ...
939 views

### How to compute the inverse CDF properly?

Note: this has been fixed in version 9. I want to compute the CDF and inverse CDF of the hyperbolic distribution: ...
3k views

### Does Mathematica v.8 (or will v.9) run on Windows 8 systems with ARM processors? (like the MS Surface Tablet)

Today I was reading that the Microsoft Surface RT is available for pre-order. (For the curious, click here.) I know the version of Widows 8 that runs on x86 processors should be compatible already ...
163 views

### Mathematica 8 and window names for modified files

I do not know if this is particular to Mac OS, but with version 8, the window name of a notebook no longer changes (with an appended *) when it is modified, as it used to do with version 7 (as well as ...
121 views

### Using EdgeList on a once empty Graph crashes the kernel

Note: this is fixed in version 9. Calling EdgeList on a non-empty graph which was previously empty causes the math kernel to crash. For example, ...
3k views

### Does Mathematica 8 work on Windows 8?

I just saw that Windows 8 RTM has showed up on Technet, and I've been wondering if I should upgrade my main machine. I've been trying to determine the compatibility of various app with Windows 8 and ...
158 views

### How to enable-dynamics on CDF's on web?

Went through the wizard to export cdf /w embed code: The positions and sizing are correct, but there's no interactive side to it: data I'm using: ...
300 views

### BubbleChart Text Tooltip's

Is it possible to display "name" in the tooltip? It won't chart the full dataset, so I can't make a custom labeling function that takes it in. ...
314 views

### Extra factors appear when evaluating Euler integrals

Note: this is fixed in version 9. When I perform the double integral in Mathematica, Integrate[(x (1 - x))^z (y (1 - y))^z, {x, 0, 1}, {y, 0, 1}] which ...
115 views

### DateList not using current year when a year is not specified

According to the documentation when using DateList but not giving it a year it should use the current year. It is not doing that for me. Instead it uses 1900. ...
607 views

### backward compatibility

When producing or enhancing code, it is tempting to use recent new primitives of Mathematica introduced in version 7 and 8, but for library code or in preparation or future version change in ...
188 views

### Issue with PathGraph

I am having a strange issue with PathGraph. Executing PathGraph[{a, b, c}] or ...
202 views

### DistributeDefinitions not working for compiled functions

This is fixed in Mathematica 9.0.0. I'm having trouble with parallel evaluation of compiled functions. Here is a simple example illustrating the problem: ...
394 views

### Why does LogLinearPlot sample its argument outside the specified domain?

I experience a weird bug in the function LogLinearPlot. If the input is an interpolation function, such as the one created like this, ...
184 views

### NExpectation behaves oddly with EmpiricalDistribution

Note: this is fixed in version 9. My question concerns the usage of NExpectation and Expectation and why I see the behavior I ...
364 views

### Customize startup

Is there a way to personalize the startup? I want, for example, that mathematica starts Maximized (not slightly-less-than-maximized as it usually does) with a notebook (also maximized) with a zoom of ...
697 views

### Command Completion

Note: As of version 9, this functionality is available and works out of the box. I've a few questions about Command Completion in Mathematica. I recently discovered this feature, and it's really ...
2k views

### Printing exported PDF graphics fails (version 8)

When I export even simple graphics, say, a DateListPlot to PDF under Windows, it refuses to print on any of the printers at work. Acrobat (Reader X) throws three ...
229 views

### What changes in Dynamic have occurred from Mathematica 7 to Mathematica 8 that might induce incompatibilities?

I have a function that outputs a Manipulate (say FAnimated[params_]:= Manipulate[F[params,t], {Time, Animator[t]}] where F ...
813 views

### Wavelet Packet Transform in Mathematica 7 and 8

For finding location of spikes in a time series I used to transform the data into wavelet space using DiscreteWaveletPacketTransform [ data, filter, 0] and then ...
163 views

I tried to use VertexLabelStyle, but seemed not recognized in my system with version number 8.0.0.0. Is this expected or I have missed something? From the online ...
162 views

### RunScheduledTask didn't execute itself the first time, why?

I have a problem with RunScheduledTask (new in Mathematica 8). A task that I usually need to do is to set a cron to start at a specific time and repeat itself at the same time every day (or the same ...
261 views

### NullSpace[_, Method->“OneStepRowReduction”] is sometimes wrong; how can I work out when this happens?

(This is on MMA 7.0.1.0 on OS X) I've just found a large matrix m for which NullSpace[m] and ...
151 views

### Bug in LengthWhile?

Is this a bug or my MMA went insane or I'm missing something? LengthWhile[Reverse@IntegerDigits[1000], # == 0 &] works fine, but with SameQ instead of Equal, ...
211 views

### How to Write into multiple files?

Note: this is fixed in version 9. I want to put expressions into multiple files simultaneously, with the following code: ...
225 views

### Problem with EllipticE documentation

The complete elliptic integral of the second kind, EllipticE, is defined as, Integrate[Sqrt[1-m Sin[t]^2],{t,0,z}] According ...
528 views

### Typography messed up in prints

For a long time now I've had trouble printing Mathematica files. While the .nb itself displays just fine on my screen, the kerning is awful when printed. Screen: Print: And in case you ...
398 views

### Practical uses of DynamicWrapper

I am looking for practical uses of the function DynamicWrapper . I read documentation and know whatever it says. I would appreciate a clear example of a useful ...
493 views

### Undocumented syntax of FilledCurve [duplicate]

Possible Duplicate: Undocumented form for FilledCurve[] A nice trick to get the outline paths of letters is to use the PDF exporter/importer ...
955 views

### How to export and import Graphs with additional data?

I'm trying to export and then later import graphs with additional data added such as VertexLabels and EdgeLabels. When I export ...
846 views

### Transparent textures don't show

EDIT For now, I'm going to accept Brett's answer. It's a way to get transparency back by having 3D calculations done in software instead of hardware. It addresses the symptoms but not the ...
274 views

### What is the most convenient way to change options for Graph[] objects?

What is the most convenient way to change options such as VertexLabels in existing Graph objects? (Version 7 users note: ...