# All Questions

239 views

### Problems extending NelderMeadMinimize into 2D

Update The eventual route I followed was to adapt a version of the NM-simplex written in C and link to it with MathLink. Once I've tested this out fully I'll post it here. I've been playing around ...
202 views

### What devices are supported by the connected devices framework?

One of the new features in v10 is support for connected devices. How can I find out if a particular device is supported by Mathematica? Is there a complete list? Is support being added continually? ...
345 views

### SemanticImport mis-interprets CSV

SemanticImport misinterprets rows with trailing blanks. Note the commas in the 2nd column: ...
135 views

### Export ContourPlot as DXF

I'm having some trouble exporting a ContourPlot as a .DXF (to be used in AutoCAD). My code is: ...
2k views

### How to access new colour schemes in version 10?

Many colour schemes and colour functions can be accessed using ColorData. Version 10 introduced new default colour schemes, and a new customization option using ...
181 views

188 views

### How can I use NestWhileList instead of While in this case?

OK, the problem occurred when I challenged with Project Euler No. 10 The sum of the primes below 10 is 2 + 3 + 5 + 7 = 17. Find the sum of all the primes below two million. My code is: ...
75 views

### How to use a scheduled event in a cloud notebook to read data files on a desktop

I don't know even how to attempt this, or if it's possible. I would like to be able to examine conditions, data, status of email server on my work desktop from the programming cloud. I recognize that ...
708 views

### How to estimate the matrix condition number in the 2-Norm?

The Mathematica documentation says it is possible to estimate the matrix condition number in norms 1, 2, and ∞. But the 2-norm raises a message. This is an extract from reference documentation ...
51 views

### Constrain Fit to make a fit that remains positive over the range of my independent variable

For example, say I have the following data. ...
150 views

### Coloring a set of polygons, each polygon to have a specific color

In addition to my previus post, regarding plotting the surface of a Möbius strip, I now realised, that some of the eigenmodes for a Möbius strip are either oscillations of a scalar field OR a vector ...
138 views

### Plotting multiple curves with multiple axes (>2) on the same plot

I'm attempting to generate a graph that depicts mulitple time series, measured in different units (but with a common time scale) on the same graph. This is a generalization of the familiar ...
105 views

### What is wrong with combining two programs with event handlers?

I can delete the unwanted nodes of a RandomGraph by double-clicking on them from the first program, and I can change the positions of the nodes by dragging them ...
61 views

### Enlarging a contour plot

I just started using Mathematica, and when I entered the following: ...
102 views

### Returning ancillary computation results from a function

Suppose I want to implement a function to solve a very basic Elliptic problem using Finite Element of some degree (It's just an example). Normally the user of my function is only interested to the ...
139 views

### Piecewise conditions with a parametric PDE

I'm using ParametricNDsolve to check best fit of a model (function Eb1) with some data, and I have four free parameters I want to test. I can easily construct a Parametric solution between the two ...
86 views

### FindFit is producing a list of imaginary numbers when there is non

I am trying to find the fit of an equation to some data and mathematica thinks there is a list of imaginary values. My data is all real positive number. ...