# Tagged Questions

MathLink is a suite of Mathematica functions that implement a protocol for the communication/interfacing of Mathematica with external programs.

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### Minimal effort method for integrating C++ functions into Mathematica

As of Mathematica 8, what is the minimal effort way to integrate an existing C++ function into Mathematica? I think we have these: MathLink (it was quite long ago I used it last time) communication ...
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### Transferring a large amount of data in parallel calculations

This question is inspired by one of @whuber's answers Consider the following code: ...
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### How to use Mathematica functions in Python programs?

I'd like to know how can I call Mathematica functions from Python. I appreciate a example, for example, using the Mathematica function Prime. I had search about MathLink but how to use it in Python ...
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### Efficiently determining if 3D points are within a surface composed of polygons

This is the 2nd part of a previous question which I edited to make into 2 separate questions: Extracting polygons from 3D contour plot surface As an extension of my earlier question involving simple ...
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### MathKernel doesn't return all Messages

In Mathematica I run this command: Plot[Sin[x], {x, 1, 15}, GridLines -> error] It generates a Plot with this error message: A GridLines specification ...
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### Calling IronPython code from Mathematica

I'd like to call some IronPython code from Mathematica using .NET/Link. The problem is that the code lives in .py files, yet from Mathematica I can only load .NET assemblies which are DLLs. So it ...
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### Passing back “NaN” and “Inf” to C via MathLink

In the "usual" double representation of floating point numbers in C there is a NaN and an ...
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### How to run mathlink external commands in parallel?

I have an external function called increment (for the sake of illustration) that I call from Mathematica using MathLink. I.e., ...
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### Connecting to and disconnecting from a continuously running kernel, on demand

I realized that there are lots of advantages to driving C/C++/FORTRAN code directly from Mathematica as LibraryLink functions (instead of running them from the command line or a shell script, as I ...
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### What is the complete list of valid FrontEnd Packet types?

In response to my question How can I get the unchanged Box form of an arbitrary expression? John Fultz answered with a method using the hilariously named ...
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### Example program for calling Mathematica from C

I want to call Mathematica from a C program. Suppose I have two numbers x = 2 and y = 3. I want to define ...
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### Using Mathlink with the cernlib FORTRAN package MINUIT

I could successfully use Mathlink to call a simple fortran subroutine. However, when I went to a realistic problem, I failed. To be specific, I want to fit a set of data with some function using the ...
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### WSTP broken by upgrade to 10.0.1?

Bug introduced v10.0.1 and fixed in 10.0.2 Everything was working fine with WSTP (the successor to MathLink) in 10.0.0. But I upgraded to 10.0.1 today and now I can't compile either my programs ...
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### Multiplayer game in Mathematica: how to communicate between kernels?

This may have been asked already, but I am considering making a game in Mathematica that two people can play. However, the issue with my idea is that the other player can't view the cards of the first ...
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### Connect Frontend to Kernel Started by JVM via JLink

I have a MathKernel started and controlled via JLink from a JVM. The \$CommandLine for this kernel is: ...
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### Using LinkSnooper for monitoring the communication with an installable MathLink program

How can I monitor the communication between an installable MathLink program and the kernel? Can LinkSnooper do this?
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### Is it possible to set a timeout for LinkWrite[]?

This came up in relation to this answer Is it possible to set a timeout for LinkWrite? LinkWrite seems to block until the sent ...
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### using MathLink for communication with external program from my C program without Mathematica

I have a compiled program with MathLink. I want to use it from other C program, without Mathematica being involved at all. If i create my program with MathLink and connect to this external program, ...
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### Write C/C++ programs calling Mathematica functions

I need to write a C/C++ program and call some functions in Mathematica especially those like Solve or NDSolve. The problem is ...
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I tried to install LinkSnooper on my Windows 7 computer, as described in the documentation and here. According to the answer of @Todd Gayley, I entered the following string in the field MLOpen: ...
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### Returning multiple results from a LibraryLink function

What is the best way to return multiple inhomogeneous results from a LibraryLink function? Imagine that the result of a single computation is several tensors of different dimensions and several ...
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Is there a possibility to suppress the Mathematica Kernel taskbar tab when accessing it through .NETLink on Windows?
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### Convert C program using mathlink to WSTP

I have been using heavily a custom frontend to mathematica based on mathlink. I derived it from http://library.wolfram.com/infocenter/Demos/174/frontend.c?file_id=4692 . I just learned that mathlink ...
783 views

### Calling Mathematica from Visual Studio - example

I am trying to set up a connection between Visual Studio 10 and Mathematica 8.0 on a Windows system. I found several sources of information on the Wolfram website, but I get entirely lost. Most of the ...
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### How to use RunProcess to import external function?

I have a functions written in an external language called GO. How can I quickly load them into the kernel for use as Mathematica functions? The two ways I've tried are with MathLink and LibraryLink ...
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### Correct way to handle mysterious NaN` result from MathLink function

I have a Mathematica expression that is mapped onto an external C function via MathLink. The external function passes a ...
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### Running .NET/Link on Mono (On MacOS or any UNIX or Linux Distro)

Has anyone have any luck running .NET/Link on Mono? When I run .NET/Link to call Mathematica from within a Mono program, this is the error message I receive. ...
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Assume the following situation: I have a WolframLibrary function which gets as parameter an integer tensor (which is for simplicity of rank 1) and the function should return an integer list through ...
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### Asynchronous Programming

Consider that you would like to listen for Raw WiFi Packets coming into your NIC. Since Mathematica doesn't have built-in functions for such low level programming (as far as I know), one alternative ...
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After macosx 10.9 mavericks upgrade i have a compilation problem, you can see below. Even the examples given in ...
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### Using “Raw MathLink Connections” to create a “Kernel Object”

Mathematica 8.0.0: I am stuck trying to get a Mathematica Mathlink connection from my Windows computer working that should connects to Linux over network (or vice versa) and then launches a Kernel on ...
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I am using MathLink with C/C++ on a Unix system in order to call a Mathematica (version 9) function and get the result. The function I need to call is a personal function of mine ...
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So far I have read that some things are not supported in CDFs. Istvan-zachar mentioned very useful things in his post. Unfortunately he mentioned that MathLink operations, including J/Link and ...
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I'm trying to get LinkSnooper up and working on a Windows 7 machine to monitor the interaction between the Mathematica front end and MathLink. I'm facing great troubles following the instructions ...
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### Throwing away all expression on a loopback link

What is the simplest way to throw away all expressions waiting to be read on a loopback link, effectively resetting the link? I am building an expression on a loopback link using the C MathLink ...
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### MathLink Graphical Output (Plots) to File

In a custom Mathematica frontend based on MathLink I try to make use of plots produced in Notebooks. The idea is to write them to files whenever they get produced. According to C-code snippets I ...
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### How do you get high resolution plots in applications using the Mathematica MathService?

This is for Mac users only using MathService (MathService it seems, given that it was created back in 2004, is a power pc code and requires Rosetta to run on Intel). If I type a plot command in ...
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### How can I wrap a C++ object in WSTP?

I am trying to wrap a sophisticated C/C++ API in Mathematica using WSTP, but can't work out how to return a pointer to a C/C++ data structure. This object was created on the C/C++ side of the wrapper, ...
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### How could get all escape characters in Mathematica?

I am evaluating expression by using KernelLink. But the kernel will be suspended endless when meets a invalid escape character. ...
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### WSTP hangs up in Mathematica 10.2

I have a problem with WSTP in the newest version of Mathematica. I get the same problem on Ubuntu 14.04 and Mint 17.2. Using the pre-built examples (...
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### Generating Mathlink executables by CCompilerDriver

I'm trying to generate a MathLink executable by CCompilerDriver package. The MathLink ...
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### MathLink error while calling a custom Mathematica function - MLGet out of sequence

I am trying to call Mathematica 10 from F#. Following the C# sample code found in the Mathematica directory, I have written the following F# code: ...
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### Configuring remote access when using a VPN

To address some of the responsiveness issues, I use the Mathematica front end (v9 or v10) to access a remote kernel on a Raspberry Pi. The (advanced) kernel configuration used is this: Arguments to ...
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### Reconnecting to remote kernels through SSH tunnelling

This is a follow up question to How can I connect to a remote machine? and the excellent answer provided by ybeltukov. My system is now configured as described in the answer with my MacBook running ...
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Don't you just love it when your computer is working fine, you work with some good examples, everything is wonderful and your relationship with your computer is the best? I do. But what happens when ...