# All Questions

2k views

### Finding all elements within a certain range in a sorted list

Suppose we have a sorted list of values. Let's use list = Sort@RandomReal[1, 1000000]; for this example. I need a fast function ...
1k views

### How to manipulate web pages on Mathematica?

I wanted to input some data on this page through Mathematica: http://www.fundamentus.com.br/buscaavancada.php Then I would press the "buscar" button also through mathematica coding and get the ...
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### is there an equivalent of “show” steps? [duplicate]

Possible Duplicate: Get a “step by step” evaluation in Mathematica In wolfram alpha, when preforming for complicated integrals there's a 'show steps' option that explains how ...
2k views

### How do I clear all variables with subscripts? [duplicate]

Possible Duplicate: Clear complains that a variable is not a symbol or a string? Clear["Global*"]` Works for most variables, however if i do something ...
1k views

### CUDA and GPU hardware and compatibility questions?

We have iMac desktops and have just begun to parallelize computations across them see: Wolfram Light Weight Grid and parallel computing. This still does not look like it will give us the performance ...
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### Mathematica Debuggability

One of the things that I really dislike about Mathematica is its lack of debuggability compared to many other programming languages. Some of the problems arises from the functional nature of ...
822 views

### Formatting output of OpenAppend[] to match what Export[data,file,“.csv”] would output?

I have a large data set that gets exported to a .csv file. Export[data,filename,"csv"] is extremely fast and formats the data in a nice JMP-friendly manner. ...
493 views

### Reading from a stream of strings and numbers delimited by commas

I am trying to read from a stream of strings and numbers delimited by commas similar to the way I have read from a stream of strings and numbers delimited by spaces. Example delimited by spaces ...
240 views

### Too much vertical space in a CDF file

When I prepare a CDF file to be included into a web page, far too much blank vertical space is left over the pane. Is there a command to reduce that? This is illustrated by the files SimpleDemos.nb ...
236 views

### Efficient way to turn a subset into a permutation

For an input vector $\{a_1,a_2,\ldots,a_n,b_{1},b_2,\ldots,b_{m}\}$ and a list of ordered positions $\{k_1,k_2,\ldots, k_n\}$, such that \$1\leqslant k_1 < k_2 < \ldots < k_n \leqslant ...
301 views

### How to write a function-defining function which stores the function arguments in a stack?

I have a function-defining function SetAttributes[DefFn, HoldAll]; DefFn[f_[args___], body_] := f[args] := body; I am trying to modify this function to record ...
169 views

### HITS centrality

I want the centrality measure of a particular vertex in my graph, and for Closeness, Betweenness and Degree centralities I have been using : ...
2k views

### Programmatically generate packages from notebook files?

Currently, there are two ways I know of to generate a package (.m) file from a notebook file; one is to set the AutoGeneratedPackage option in the Option Inspector, ...
2k views

### Function for Autocorrelation

Is there a built in function to compute the autocorrelation of a signal ?
629 views

### Speeding up export of a matrix to a dat file

I'm trying to export a 1000*100 matrix of numbers to a .dat file using Export (I want the numbers to be separated by a tab) and ...
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### Saving a notebook without output lines

Is it possible to change the way Mathematica saves so that Out[] lines are never included? I have a .nb file that processes a ...