# All Questions

218 views

### Tensors with mixed symmetry

I want to work with tensors of mixed symmetry, for example with a rank 3 tensor $A_{ijk}$ that is symmetric under the exchange of $i$ and $j$ and antisymmetric with respect to $i$ and $k$. I was ...
123 views

### How can I reshape my solutions to make a 3D plot?

I need some help on the following. I need to run Solve for multiple values of a and b. To do so instead of using Do, I use ...
222 views

### Applying a texture to part of a sphere

I am trying to texture a sphere with a picture of myself. I don't want it to be stretched across the whole sphere but only to appear on the front. I used ...
1k views

### How to fit a surface to 3D data in Mathematica?

I have a set of data coordinates which is mostly compatible with an Ellipsoid: {{x1,y1,z1},{x2,y2,z2}, ... , {xn,yn,zn}} Now I want to find the best 3d volume ...
158 views

### How to make a widget float?

Is there an option or way to make a GUIKit window remain in on top of other application's windows? ...
69 views

### Replace parts of nested lists

I have list of stock data as follows: lis1= {{{1992/10/12, 126.946, AEX}, {1992/10/13, 127.85, AEX}}, {{1992/10/12, 88.487, AFLI},{1992/10/13, 91.825, AFLI}}} ...
52 views

### Use two functions for x and y coordinates for a plot [closed]

I try to make a plot out of two functions. It is a cycloid I want to plot. These are my two functions: ...
583 views

### Right Ascension and Declination in astronomical functions

In the process of answering this question, I was forced to confront the various astronomical coordinate systems used by Mathematica. Background In astronomy, positions of celestial objects (stars, ...
88 views

### Optimization of custom probability distibutions?

Consider the two tests: Timing[Do[RandomVariate[NormalDistribution[0.5, 0.3]], {200}]] {0.001188, Null} ...
49 views

### Strange behaviour of suggestion bar to solve an ODE, potential bug

InputE^(-(1/2) x[t]^2) (Derivative[1][x][t]^2 - (x^\[Prime]\[Prime])[t]) == 0and evaluate, then press the solve ode button on the suggestion bar. It will return ...
331 views

### Integrate fails for generic parameters but works for any specific values (v. 10.0.x bug)

Bug introduced in 9.0 and fixed in 10.1 I was trying to get the following integral ...
92 views

### Completion in terminal?

I know that it is possible to run Mathematica in Terminal. But I didn't find a way to get completion work in Terminal. I mean completion by ...
78 views

### Get Coefficient of polynomial excluding variables

I'd like to write a function that returns the coefficient of a polynomial, but excludes some 'cross-term' coefficients. The function could be called CoefficientExclude, and the first argument would ...
112 views

### Root: Simplifying symbolic expression

I'm doing calculations with a lot of symbols, which don't always gives nice expressions. Now I have a solution with a Root-expression, where the coefficients are symbolic, e.g. ...
186 views

### PlotLegends in ListPlot does not display different markers

I would like to plot a graph with the legends at its side. However, I have managed to plot the legends, but the markers do not match the one in plot (picture bellow): My code for that plot is: ...
182 views

### DynamicModule issues with Refresh, double evaluation, and CDF Player preview

I am in the middle of making a CDF for a calculation of many random variables. I've gone with DynamicModule and have read the documentation plus these posts: 32294 ...
431 views

### Can't inject EncryptedObject

Bug present from 10.0 to 10.3.1 and fixed in 10.4.0 !! Here are minimal examples: ...
95 views

### FrontEndObject::notavail: error when using math

I am new to mathematica script and thus I don't know whether this generated error is natural or not. When I write a command such as echo "3" | math in the ...
62 views

### Find volume of a translated and rotated ellipsoid below xy (horizontal) plane [duplicate]

I am trying to find the volume of the lower part (above horizontal plane) of an ellipsoid that is clipped by the horizontal (or x-y) plane. This ellipsoid is also translated (i.e. origin is not at ...
422 views

### How do I plot my country map with weather data stations?

I've tried this code, but I can't plot the coordinates in my country map. ...