All Questions

94 views

What is the effect of giving ColorFunctionScaling a numerical argument?

(by making a mistake) I realised that ColorFunctionScaling can take a list of numerical arguments rather than just booleans. The following is true for ...
59 views

Using Dataset with TimeObjects in EventSeries

I'm new to Mathematica, and while this is potentially quite easy, I'm having difficulty using TimeObjects in the EventSeries ...
101 views

How can I add a plot legend with variable value and text?

I have a list plot: ...
25 views

Get rid of infinty in matrix elements (by seperately defination of diagonal and off-diagonal elements)

I want to generate a matrix in which the elements have the below rule to be generated: ...
88 views

Better use of pattern matching in replacing elements of a list

I have a list of reals and I'm replacing those which are contained in a given interval with two different values depending on wheter the selected reals are positive or negative. I came up with this ...
1k views

202 views

Approximation of definite integral by parabolas

This question is related to Trapezoid approximation to definite integral. As promised, I am now asking about how to draw an approximation of integrals by parabolas. I tried to modify MarcoB's code, ...
163 views

Bad interaction between Join and ListPlot (or Plot)

When you write this code: tab = {{1, 1}}; tab = Join[tab, {{2,2}}]; you expect to get the following table: {{1, 1}, {2, 2}} ...
182 views

How to turn a colour entity into a colour directive?

I am not experienced with Wolfram Knowledgebase queries and working with entities. What is the "correct" way to convert a colour entity into a colour directive? Example: ...
84 views

Need help understanding the output of DSolve

I give Mathematica 10 the following command: DSolve[I D[P[x], {x, 2}] f[x] - (P'[x])^2 f[x] + 2 I P'[x] f'[x] == 0, P, x] and I have the following output: ...
71 views

Unexpected behaviour of MomentOfInertia

The problem I expected Mathematica to solve rather easily is that of the calculus of a moment of inertia of a "c" section defined by the following Polygon: ...
40 views

TimeSeriesAggregate—reformatting the date

Compute Aggregated Statistics for a Time Series The article linked to above provides a sample of aggregating time series data. ...
37 views

I am new to Mathematica and have v10. I would like to you use the new TimeSeriesAggregate[tsdata, "Quarter", Total] feature to return aggregated descriptive stats. I import a number of columns of ...
144 views

Trapezoid approximation to definite integral

This question is related to Graphically approximating the area under a curve as a sum of rectangular regions. I now was trying to adapt the code by MarcoB to get the approximation of the integral by ...
67 views

Can this expression be calculated symbolically?

I want to do definite integration of the following expression ...
41 views

How can I compute the difference in Y-axis values between data sets with similar X-values

I am new to Mathematica, so this might be a very basic question; however, I cannot find a solution to this and it is taking me very long. For my research I am probing the photoluminescence response ...
397 views

Create a polynomial of a given degree

In Mathematica, how can I create a polynomial function in given variables of a given degree with unknown coefficents? That is, I am looking for a function ...
3 views

Maximum Likelihood Approach for parameter estimation of multi response data, could you provide a tutorial? [migrated]

I was trying to fit the parameters a time dependent system coupled of ODES relate to a kinetic experiment with multi response data. example: A->B+H A+H->C+H A->D dcA(t)/dt=-k1Ca(t)-k2Ca(t)*Ch(t)-k3*Ca(...
1k views

Graph vs. GraphPlot

What is the difference (in purpose) between Graph and GraphPlot? Which function is bested suited to which tasks? Background: I ...
101 views

How do I apply assumptions to a module (or any CompoundExpression)?

Edit: I am looking for a way to apply assumptions to all expressions contained in a compound expression. For example, ...
41 views

Drawing a GraphPlot by preserving the structure of the graph

For eg. GraphPlot[{1 -> 2, 2 -> 1, 3 -> 1, 3 -> 2, 4 -> 1, 4 -> 2, 4 -> 4}, VertexLabeling -> True] Then If I remove the edge (say ...
32 views

Training Hidden Markov Models using Mathematica

I have created a Hidden Markov Process with an initial probability vector, emission and transmission matrices. ...
117 views

Delete elements from a list

I have two lists, for example s={{1,3,2},{1,3,2},{2,3,1},{3,1},{2,3,1}}; c={{3},{1,2},{3}}; First element of c means that ...
39 views

Mapping a List: Functions in Mathematica [on hold]

I have the code: ...
30 views

Plotting Graph having coloured visuals and coloured lines [on hold]

Somebody please tell me what is "fondo" and "funcero" Plus I'm having a great difficulty in plotting a graph, my graph line doesn't show up. frustrated
536 views

Reproducing the xkcd “Self-Description” comic

Trying to brush up on my programming, I wanted to see if I can reproduce at least the first two panels of the following comic in Mathematica: I have some code for trying to reproduce the first ...
70 views

Co-ordinate Points on a 3D Plot

I have a 3D graph: I want to figure out the values of the variable in the horizontal axes for which the graph has the highest value -- seeing the vertical axis, the value of variables where plot ...
55 views

This web page says that MATLink requires admin rights. First two steps to link Mathematica and MATLAB are: Add MATLAB's bin\win64 directory (bin\win32 for 32-bit versions) to the operating system's ...
57 views

Distribute operator on functions

I wrote this code: ...

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