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3
votes
0answers
22 views

Bug in TreeForm: “Plot” formatted as True

I believe I have come across a rather curious bug in TreeForm: {"foo", "bar", "Plot"} // TreeForm Note that the string ...
15
votes
2answers
226 views

Error changing Dataset using Part

In the new guide Computation With Structured Datasets we can find this part, on how to change a Dataset But if we create a Dataset like: ...
4
votes
0answers
52 views

Possible bug: SparseArray Part assignment loses default value?

This sure looks like a bug to me (Mathematica 10.0.0, MacOS): ...
5
votes
2answers
122 views

Webdings are different on V10 vs V9. Why?

I use FontFamily->"Webdings" in interfaces in several places, but among other things for custom opener icons, for example I use the following "icons" for open and closed openers: In version 10 this ...
8
votes
1answer
191 views

Are there any tutorials on version 10 notebook templating and report generation? Are there missing docs?

I am trying to understand the new templating in version 10. While there is a general documentation page with links to docs for each new function, so far I am unable to find any report generation ...
6
votes
3answers
221 views

How to use PlotRange -> All with ListLogLinearPlot?

I would like to generate a ListLogLinearPlot that automatically shows all the data points. However the option ...
5
votes
1answer
212 views

Mma10 mystery: Failure of pure function substitution with Interpretation?

I had code to display with subscripts from Displaying index as subscript on output: e.g. C[i] -> C_i with Notation[...] or Interpretation[..]? which is now breaking an innocuous pure function ...
13
votes
4answers
412 views

HoldForm doesn't hold form

In Mathematica version 10, HoldForm no longer produces the same results as in version 8 (edit: I only have versions 10 and 8 installed, so can't compare to version ...
14
votes
1answer
328 views

Why do Arrowheads interfere with ImagePadding?

Bug still present in version 10 under Windows. In a recent posting, Belisarius solved a problem related to the display of arrows on the x and y axes by setting ...
10
votes
2answers
244 views

Probable Bug in ConvexHullMesh

Consider points taken from the following parametric plot. See this question ...
10
votes
0answers
50 views

Report: IgnoringInactive: a bug?

Just to report. IgnoringInactiveshould work with Cases. In agreement with the things written at the Documentation Center this: ...
4
votes
1answer
138 views

Mathematica 10 doesn't support path containing Chinese characters

I tried to import file in Mathematica 10 ( windows 7 system), the path contains some chinese characters. After holding ctrl+shift, and drag the file into front end. I got path like ...
4
votes
2answers
186 views

Why doesn't Roots work on a certain quartic polynomial equation?

In everything that follows I am using Roots to get the solutions to the equations. I start off with this equation: $$ \frac{A}{3}x^4 - x^2 + 2ax - b^2 = 0$$ Now ...
7
votes
1answer
123 views

Bug in handling backslashed Cyrillic symbols in v.10.0.0?

Consider: "\бвгд" // FullForm "\\бвгд" // FullForm In v.8.0.4 I get this: ...
4
votes
0answers
47 views

GraphicsGrid Format Problem with SpanFromAbove

I believe this is a bug in GraphicsGrid. ...
4
votes
1answer
119 views

Example from Mathematica documentation (ExtremeValueDistribution) seems to be evualting “forever”

I am referring to this example at the reference page for the extreme value distribution: http://reference.wolfram.com/mathematica/ref/ExtremeValueDistribution.html#6764486 The first three commands ...
6
votes
3answers
171 views

Should DSolve always return solution with constant of integration?

Version 10.0 Clear[y,x]; DSolve[D[y[x], x] - y[x]^2 + y[x]*Sin[x] - Cos[x] == 0, y[x], x, GeneratedParameters -> C] or ...
18
votes
2answers
268 views

Negative probability?

I am trying to get the sum of the squares of seven random variables, all uniformly distributed. This is what I tried. ...
8
votes
1answer
91 views

Is there a bug in AssociatePairs?

In Version 10, the GeneralUtilities package contain some useful functions. AssociatePairs is one of those functions included in ...
12
votes
2answers
223 views

Strange behavior when using Row with packed arrays

Today I lost a lot of time with a strange behavior and I narrowed it down to this small piece of code: ...
15
votes
1answer
298 views

Kernel crash after idle in version 10.0

In version 10.0, when I leave the Mathematica section idle for some time (of order an hour), the kernel quit automatically. The syntax highlighting is gone and the variables that has defined before ...
8
votes
1answer
111 views

Strange behavior of BinCounts

Just try this example: ...
3
votes
2answers
311 views

Transparency rendering problems in Mathematica 10 (Mac)

For some weird reason, they apparently changed the styling of contours in ContourPlot for 10.0. Here is a comparison of the results for V9 and V10 (first 9, then 10): ...
9
votes
1answer
168 views

StringMatchQ and Alternatives throws message in init.m

The report of this issue, which itself relates to code of my answer here, exposed a behavior I cannot explain. If I use StringMatchQ in combination with ...
7
votes
0answers
87 views

Potential pollution of Global` context in fresh kernel

If I evaluate, with a fresh kernel Names["Global`*"] I get {"rhs", "z"} I think this is not caused by any packages in ...
16
votes
1answer
270 views

Specifying non-conflicting PlotTheme options

I am trying out Mathematica 10 on https://programming.wolframcloud.com. $PlotTheme interested me a lot because it finally produces nice plots (probably) without the ...
6
votes
4answers
165 views

PlotLegend disappears if Plot is used with ColorFunction

Working some charts on V10, I discovered that PlotLegends disappears if used together with ColorFunction inside ...
7
votes
2answers
277 views

Grid - problem with ItemSize being ignored

Still present in version 10. I have run into another problem with Grid today. An explicitly specified ItemSize is being ...
12
votes
4answers
413 views

Grid - Item - Alignment to decimal problem

Still present in version 10. I've run into a Grid layout problem for which I don't know a solution. I want to specify alignment to a specific character such as ...
10
votes
0answers
114 views

Input Aliases in Mathematica 10

In Mathematica 9, typing in an input alias such as intt would result in the keyboard cursor automatically positioned within the first ...
15
votes
2answers
253 views

Upon PDF export, edgeless rectangles do not tile perfectly, and corners may be cut. Is this a bug?

Note: this problem is no longer present in version 10. Exporting the following as a PDF file ...
4
votes
0answers
67 views

Why does GridLines option fail with Function?

The Plot option GridLines can be specified either as a list of explicit values at which to draw the lines, or as a function that ...
22
votes
2answers
327 views

eigenvector bug?

I have a fairly simple $3\times3$ complex matrix, $$ M=\left( \begin{array}{ccc} \frac{7}{2}-\frac{i}{2} & -1+i & \frac{1}{2}+\frac{5 i}{2} \\ -1+i & 5+i & -1+i \\ ...
5
votes
1answer
113 views

Systematic increase in runtime [duplicate]

When I run this simple code, which repeats many times the exact same operation (a differential equation), the runtime (given by Timing) increases systematically, ...
7
votes
0answers
98 views

AbsoluteOptions prints error messages in V10

I am trying to use AbsoluteOptions in V10 but I am getting the Out with some errors as see in this picture: does anyone have same issue?
3
votes
2answers
138 views

Drawing an arrow head on a curve

I am trying to create an illustration for a paper and export it to PDF. Here is the code ...
17
votes
2answers
259 views

Graphics elements do not line up perfectly in exported PDFs

Graphics elements do not always line up perfectly in exported PDFs using "Save As..." method. Take, for example: ...
4
votes
2answers
136 views

CurrentImage[] “unable to connect to camera”?

I have a new Macbook Pro (Retina), running Mavericks. For some reason I cannot access the camera in Mathematica using CurrentImage[] or ImageCapture[]. The result is: ...
4
votes
0answers
62 views

Bug in PositiveDefiniteMatrixQ?

This seems like a bug in PositiveDefiniteMatrixQ to me: ...
4
votes
3answers
196 views

Why the inequality does not take into account the domain?

I have this inequality: Reduce[(4000-1000k)/(k-4) < 0] and the answer is k ∈ Reals I would expect ...
2
votes
1answer
40 views

FunctionInterpolation error when specifying AccuracyGoal

In the help page ref/message/FunctionInterpolation/ncvb, it is mentioned that one should specify AccuracyGoal for some (even ...
6
votes
1answer
93 views

Why am I getting wildly incorrect results from FirstPassageTimeDistribution with inexact transition matrix?

Working on some large systems using DiscreteMarkovProcess, I changed the transition matrix to machine precision vs using exact values, which sped things up handily. ...
5
votes
0answers
150 views

Why is this infinite series wrongly computed by Mathematica?

Could you let me know if Mathematica (newer versions) is able to correctly compute this one? Sum[(-1)^(n + 1) Cos[3^n x]^3/3^n, {n, 1, Infinity}]
7
votes
0answers
110 views

TableView displays negative numbers incorrectly

I'm trying to substitute TableForm with TableView because TableView is more handy with big data . But on my Mathematica 9.0.1 (ubuntu 14.04_64bit) there is a problem with negative numbers: ...
10
votes
1answer
250 views

Formatting Framed - some FrameStyle graphic directives don't work?

The FrameStyle option in Framed seems to work for some graphics directives but not others, eg: Framed["yo", FrameStyle -> Blue] But ...
13
votes
1answer
317 views

Why does Mathematica give an incorrect answer to this multiple integral?

This is not a new problem but I would like to understand why Mathematica gives the result that it does. (Volume of a hypersphere) ...
9
votes
3answers
262 views

Correct way to integrate a certain function

I want to integrate $$ \int_{0}^{2\pi} dt_1 \frac{a + b*\cos(t_1 - t_2)}{c + d*\cos(t_1 - t_2)} $$ where $a, b, c, d, t_2$ are real numbers and $c + d > 0$ & $0 \leq t_2 \leq 2\pi$. I used ...
5
votes
2answers
112 views

What is the syntax to conditionally suppress plotting in version 9?

In Mathematica 7 it is very easy to conditionally suppress plotting of individual lines using If: ...
8
votes
3answers
312 views

DataEncoding and compression in HDF5 format

I would like to export data in HDF5 format with Mathematica 9. The Mathematica manual about Import and Export of this format can be read here. As I'm dealing with large arrays, export often lead to ...