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4
votes
0answers
39 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 ...
13
votes
4answers
417 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 ...
10
votes
0answers
51 views

Report: IgnoringInactive: a bug?

Just to report. IgnoringInactiveshould work with Cases. In agreement with the things written at the Documentation Center this: ...
10
votes
2answers
246 views

Probable Bug in ConvexHullMesh

Consider points taken from the following parametric plot. See this question ...
5
votes
2answers
126 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 ...
6
votes
3answers
174 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 ...
4
votes
0answers
53 views

Possible bug: SparseArray Part assignment loses default value?

This sure looks like a bug to me (Mathematica 10.0.0, MacOS): ...
4
votes
1answer
143 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 ...
8
votes
1answer
93 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 ...
5
votes
1answer
214 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 ...
4
votes
0answers
47 views

GraphicsGrid Format Problem with SpanFromAbove

I believe this is a bug in GraphicsGrid. ...
7
votes
1answer
124 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: ...
8
votes
1answer
193 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 ...
15
votes
1answer
301 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 ...
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 ...
10
votes
0answers
117 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 ...
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 ...
6
votes
4answers
168 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
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
312 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): ...
15
votes
2answers
231 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: ...
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, ...
3
votes
2answers
139 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 ...
16
votes
1answer
271 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 ...
4
votes
0answers
62 views

Bug in PositiveDefiniteMatrixQ?

This seems like a bug in PositiveDefiniteMatrixQ to me: ...
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 ...
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: ...
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. ...
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 ...
8
votes
1answer
111 views

Strange behavior of BinCounts

Just try this example: ...
5
votes
2answers
113 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: ...
7
votes
2answers
156 views

Why does StreamColorFunctionScaling refuse to turn off?

Consider this simple streamline plot: StreamPlot[{-y/10, x/10}, {x, -1, 1}, {y, -1, 1}, StreamColorFunction -> Function[{x, y, u, v}, Hue[v]]] The ...
5
votes
0answers
117 views

How to fix a PDF line rendering problem in V9

If I run this in V8 ...
7
votes
1answer
623 views

Is Mathematica really getting this limit wrong?

I'm trying to calculate: $$ \lim_{\beta \to \infty} \tanh \left( \beta A \right) = \mathrm{sgn} \left( A \right) $$ for $A \in \mathbb{R}$, $\mathrm{sgn} \left( \# \right)$ being the sign function. ...
8
votes
0answers
167 views

Strange filling

I observed some strange behaviour when plotting a function with filling. The code is as follows: ...
4
votes
2answers
106 views

Checkbox behaving weird when variables are local

I have a DynamicModule in which I need a checkbox with a Max in the dynamic part: ...
4
votes
2answers
137 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: ...
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 ...
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 ...
14
votes
1answer
219 views

Mathematica 9 cannot solve a difference equation that Mathematica 8 can

Consider RSolve[{a[n + 1] == 2 a[n] + n (1 + 2^n), a[1] == 1}, a[n], n] Mathematica 8 can solve this quickly, but Mathematica 9, even after being allowed to run ...
4
votes
2answers
107 views

TreePlot, VertexRenderingFunction and stretched vertices issue

Recently I found the following TreePlot issue. For simplicity, I took an example from Mathematica Tree Drawing Tutorial and set ...
4
votes
1answer
80 views

Does the VerticalCallout algorithm in PieChart3D work correctly?

In real world usage you often want to use real world labels with long strings (say 15-20 characters) in 3D pie charts. Here is a toy example : ...
5
votes
1answer
136 views

Why does Arrow not work well with Scaled coordinates in 3D?

I am a little puzzled by the fact that if I try to use Arrow with Scaled coordinates in 3 dimensions the arrowheads are all over ...
10
votes
1answer
233 views

Bizarre behavior of With, Compile and Break

I'm guessing this is almost certainly a bug in Compile (because they're fairly common), but it's pretty weird and I spent about an hour tracking down the issue and ...
6
votes
2answers
282 views
0
votes
1answer
132 views

Display a labeled multigraph

Despite the integration of graphs and networks, multigraphs are not supported in Mathematica 8+. In Mathematica 9+, GraphPlot misbehaves for multigraphs having ...
6
votes
1answer
226 views

Why won't my function plot?

If I define ...