0
votes
1answer
29 views

What is Duration in MonitorLM output?

What is duration specified in MonitorLM output? Is it start hour and minutes or is it total number of hours and minutes used?
1
vote
2answers
35 views
2
votes
1answer
74 views

Barchart recognize time series data?

I can't seem to get Barchart to recognize TimeSeries data. For example, my data is: {{1891, 1}, {1892, 1}, {1897, 1}, {1898, 1}, {1903, 1}, {1904, 1}, {1905, 1}, {1908, 4}, {1909, 6}, {1910, ...
0
votes
2answers
51 views

Express recursion formula by Nest function

I'm fairly new to Mathematica and I have to express a formula by Mathematicas Nest-function. I'd like to find the solution for my formula by my own, thats why I ...
1
vote
3answers
81 views

2D Interpolation of data file

I hae a datafile with 5 columns of the structure: x_i f(x_i,y_1) f(x_i,y_2) f(x_i,y_3) f(x_i,y_3) f(x_i,y_4) with i = 1 to about 100. Thus there are about ...
2
votes
1answer
48 views

Mathematica - Count number of zeros of a function in an interval

Let's say I have a function, F[x_,d_] = Sqrt[(x^2 - 1)^2 + d^2], and I want to count how many roots (no root, or one root, or two roots etc.) it has in an ...
0
votes
1answer
27 views

Sampling Points Between Two Functions and Plotting Sample Points? (I have partial code) [duplicate]

I want to sample random points between $Cos(x)$ and $Sin(x)$ on $0 \le x\le \frac \pi4$ I was able to do graph the function here in Mathematica. I would like to count, and then plot points between ...
0
votes
1answer
53 views

to find limiting value of function at large N i.e. N->infinity

Is it possible to find the limiting value of function at large N ...
1
vote
2answers
73 views
3
votes
1answer
65 views

Evaluation of Derivative in a Module

Can someone help me understand the evaluation procedure in the following two pieces of code? ...
0
votes
0answers
24 views

Slow speed when CUDAQ (from CUDALink) download data from Wolfram servers

In here, there was a similar problem. So I went to the link provided: http://www.wolfram.com/CUDA/CUDAResources.html Now, The table does not have my version. ...
0
votes
0answers
16 views

problem to using Slideview to show a list of animations

when I use Slideview to show a list of animations, in each individual slide, the animation created by Animate is not running. But this problem does not occur when I change Slideview to Flipview. The ...
0
votes
0answers
66 views

incuding graphics [on hold]

i have typed << GraphicsGraphics << GraphicsLegend The message I got Is: Get::noopen: cannot open GraphicsGraphics I am using mathematica 9.How to solve this.Thank you in advance ...
0
votes
0answers
67 views

Benchmarking in V10.1.0 not showing the correct verision of Mathematica?

This was done in V10.1.0, but it's showing that as if it was done in V10.0.0? Computer Specs:(for those who are interested) ...
0
votes
1answer
114 views

Formatting an equation: X^Y to pow(X,Y)

I am trying to solve for the intersection of two circles with arbitrary centers and arbitrary radii. ...
0
votes
1answer
60 views

numerically solving

I am trying to solve for [Lambda] as a function of a (unknown) from this expression ...
3
votes
0answers
46 views

Diverging solution to coupled second order ODEs from NDSolve

For a physics application I am considering the radial Bogoliubov-de Gennes equations in two dimensions. In dimensionless form they read as follows $$ \begin{cases} ...
0
votes
0answers
28 views

How to interface ma output with webpage by php?

Since Raspberry pi has a free version ma, I am wondering how to interface it with php on web. I write some simple code as ...
0
votes
0answers
22 views

NCAlgebra to calculate a Hermitian conjugate

I have to calculate a non-commutative product of this form: $(-H a+ J a b)**(-H a + K c)$ where $H,J,K$ are variables and $a,b,c$ are operators that don't commute. For this purpose I used the package ...
0
votes
0answers
20 views

Algorithm for converting truth tables to Boolean functions

The function BooleanFunction is able to convert a truth table into a Boolean function. Does anyone know what is the mathematical background and/or algorithm that ...
1
vote
1answer
90 views

How to combine VectorPlot and Plot3D

I have a problem with VectorPlot and Plot3D, and I have a code for both but I dont know how to plot the same figure. Here is the code for Plot3D: ...
0
votes
0answers
22 views

How can I find all stationary points? i.e Something like MinDetect but for saddle points (that applies to data arrays of arbitrary rank)

I would like to find all stationary points of a data set of arbitrary rank. MinDetect and MaxDetect are great for finding minima and maxima but I can't find a good way of finding the saddle points. ...
7
votes
1answer
82 views

Reconstruction of interrupted paths in images

I want to reconstruct paths in images and have already implemented a working method in Mathematica. On the left side you can see an image with interrupted paths and on the right side the reconstructed ...
2
votes
1answer
27 views

Cannot normally underline slash characters and hyperlinks

Really, if you evaluate Style["/", Underlined] or type / and set the font of the character to be underlined through Format|Font..., you get $/$, not ...
1
vote
0answers
32 views

How to convert a list of polynomials into a list of equations and plug into Contourplot?

Given a list q of polynomials (output of GroebnerBasis) in two variables I want to transform the list into a list of equations and plug it into CountourPlot. For ...
3
votes
1answer
68 views

Put labels sloped along axes in ListPlot3D

The three text labels in the following figure are all in horizontal direction. How to put the labels sloped along each axis to which it is attached? My Code ...
0
votes
1answer
37 views

How to turn arbitrary function to polinomial series in Mathematica?

Can I turn any multivariate function into polinomial series in Mathematica? Suppose I have a function Fwd[x_, α_] := x (1/Sin[Pi x/2])^α and wish to express it ...
4
votes
1answer
85 views

Better method to swap the values of two 2-D arrays

I have two 2-D matrices $A$ and $B$(owns same dimentions) which have the style written as below: $ \begin{bmatrix} a_{11} & a_{12} & \cdots & a_{1k} &\cdots &\cdots & ...
0
votes
1answer
72 views

Fibonacci Line Search Method

I am attempting to write a code to find to bracket the minimum of a function using the Fibonacci Line Search Method, I believe my code is well written but I am not ...
2
votes
1answer
69 views

How can I get the coefficient of the exponent from a nonlinear model fit?

I have been trying for over an hour now to get the numeric value for "HalfLifeN" from the code in the screenshot below. Not to mention mathematica simplifies ...
6
votes
2answers
132 views

Integrating a function over a surface integral

From a first principles bandstructure calculation I get an energy scalar field in three dimensions $E(x,y,z)$. It's now easy to plot a constant energy (contour)-surface for dedicated values ...
0
votes
0answers
12 views

Create periodic function from combining non-periodic functions [migrated]

I'm studying recurrent neural networks which often use tanh as an activator function which is not periodic. However in research and papers it's shown that these recurrent neural nets can exhibit ...
6
votes
1answer
208 views

Eliminate an unexpected mesh line

What is the source of the vertical mesh (ring) in this figure and how does one eliminate it? ...
0
votes
1answer
43 views

Setting the solutions of an equation as a variables [on hold]

This is probably a simple question, but i couldn't find a solid answer. So i have an equation Solve[{F[x, y] == 0, G[x, y] == 0}, {x, y}] but i want to use the ...
0
votes
0answers
37 views

Second derivative using ND [duplicate]

I have a function g=f(x,t). The function "g" came from a numerical integration: g[x_?NumericQ,t_?NumericQ]:=NIntegrate[tt[x,r,t],{r,rmin,rmax}] and tt(x,r,t) ...
1
vote
2answers
90 views

Get Y-Axis of FFT in decibels

I am trying to make a plot of a sound file similar to Audacity's FFT plot which looks like this when the x-axis is on a log scale: My plot of the same sound file (below) has the problem that the ...
2
votes
3answers
83 views

Shorthand to write repetitive test in mathematica

I have the following set of Mathematica statements: ...
1
vote
3answers
78 views

Finding roots of transcendental equation and collecting into a list

I am working on a physics reserach project for school and I have run into some troubles working Mathematica. I am a fairly inexperienced mathematica user so any help would very much be appreciated. I ...
2
votes
3answers
60 views

Flattening of Matrix rows [duplicate]

It's got to be easy, but I can't come up with a general solution. m = {{16, 2, 3, 13}, {{5, 11, 10, 8}, {9, 7, 6, 12}}, {4, 14, 15, 1}}; What I'm trying to ...
1
vote
2answers
54 views

Partial reload of definitions from package

In order to keep my code modular, I have defined some functions in "Foo.wl" file, which I source with Needs["Foo`"]. When I modify a single function in Foo, I quit ...
0
votes
0answers
16 views

Infinite series [migrated]

Good afternoon. I'm brazilian, then sorry by my bad english. I have a problem with one question about Infinite Series. I searched for anyone method could help me. I have all constants values (w, y, ...
3
votes
1answer
75 views

Strange results from evaluating a simple integral

I am trying to do a seemingly simple integral in Mathematica 10 and am getting strange results: ...
0
votes
0answers
23 views

Problem when setting a path by a string [on hold]

There is a line in a cell that is something like this: myPath = "c:\myFolder" When I evaluate the cell, the message windows shows the error (I'm reporting a ...
10
votes
1answer
152 views

Mathematica 10.1.0.0 (OS X) high CPU usage even for empty notebook

Since update to 10.1.0.0 Mathematica has a high CPU usage even when no evaluation is running (even for empty notebook opened). I am running OS X Yosemite 10.10.3 on the following configuration: ...
0
votes
1answer
65 views

Are standard geometric functions present in Mathematica or do I have to type them in? [on hold]

Are standard geometric functions present in Mathematica or do I have to type them in? For example, if I wanted to calculate the surface area of a pyramid, do I have to type that in, or can I just make ...
0
votes
1answer
43 views

Eigenvectors with imaginary part

I am working on the following: ...
0
votes
0answers
48 views

to determine asymptotic value of function when N->infinity [on hold]

To determine the asymptotic value of function for large value of N, given 'm' is much less than N i.e. in the limit N->infinity and m/N->0 $f(m,N)=\sum_{a=1}^{\lfloor N/2 \rfloor} \binom{N}{S} ...
-2
votes
0answers
27 views

Odd and unclear solver output [on hold]

I am getting non simplified output with the FullSimplify, Simplify and Solve functions. I'd like to be able to take output out of Mathematica and use it elsewhere as well. This is not helping: ...
0
votes
1answer
64 views

How do I find the nearest city out of a list of cities?

I am trying to find the next closest city to city 1 and want to use a certain radius to check what is the closest city I'm trying to create an algorithm for a TSP. Does anyone know how to implement ...
0
votes
0answers
61 views

Bizarre Compile Error, changing one symbol

I am trying to compile the following code: ...

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