# Questions tagged [webmathematica]

For all questions relating to webMathematica. Not for questions relating to Mathematica Online.

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### Graphing and calculating the volume using mathematica (or other)

I posted the following in MSE: (See Here) Consider two cylinders Cs (solid) and Ch (hollow): Cylinder Cs has a radius rs, and has the points (x1,y1,z1) and (x2,y2,z2) as the centers of its bases. ...
448 views

### Jacobian matrix evaluation at a point [duplicate]

I have a vector function $f(x,y) = (f_1(x,y), f_2(x,y) ).$ I need to find the Jacobian matrix for $f$ evaluated at the point $(x,y) = (a,b).$ I learnt that I can use something like the following on ...
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### How can I put a condition inside a condition in mathematica? [closed]

The first part I programmed in python, in the second part I transcribed some parts for Mathematica s1=3; s2=-3; s3=0; se=5; ----------------------------------------...
1 vote
121 views

### How can I plot a hexagon inside this cylinder so that it is always in the same direction as the cylinder, no matter what the orientation is?

How can I plot a hexagon inside this cylinder so that it is always in the same direction as the cylinder, no matter what the orientation is? In addition, the hexagon must always be the same size as ...
384 views

### How to use Mathematica with hardly any financial resources

I'm a student from Afghanistan and I like to use Mathematica to experiment with as a hobby. But I cannot afford it. Does any one know of a free option?
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1 vote
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### code in mathematica for the game of guessing

Can we write code in Mathematica for the game where the user guesses an integer between 1-99 produced by the computer? If you have any ideas, I would be glad if you could help. I tried this: ...
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47 views

### How can Integrate of conjugate transpose in mathematica?

please help me to integrate this matrix in matematica: 0 ConjugateTranspose[u[x,t]] (u_x)[x,t]+I vx,t[x,t] 0 -ConjugateTranspose[u[x,t]] (u^(1,0))[x,t]-I vx,t[x,t] 0 0 0 ...
124 views

### Plot streamplot for two stability point for Jacobian

I have two points (0,0) and (5,-5). How can I plot the stability phase diagram for these two points in a single StreamPlot in Mathematica by showing those points ...
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### How to make a matrix that had diffrentation without functions

I want to make a matrix in Mathematica that looks like this: Any idea on how I can do this?
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### Manipulating the plots obtained from NDSolve

I am trying to manipulate my parameters eNA, eNM, eMA, eMN, eAM, eAN in the following plot obtained from using NDSolve on my set of differential equations. But I can't find a way to do it. The ...
1 vote
46 views

### How I can import data from URL by using output of GoogleCustomSearch?

I am trying to make a word cloud from all URLs that are as outputs after using google custom search so I think I need to read those URLs as data or text to can make a word cloud this is code just you ...
1 vote
61 views

Fellow Mathfolk, Please excuse if this question sounds like it’s coming from someone who doesn’t know what they’re talking about. I own iGrow.net & am trying to imbed a “dynamic spreadsheet,” ...
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1 vote
69 views

### Compute the polynomial interpolation of the points (xi, 1/(1 + x^2)) for xi = −2, 1, 0, 1, 2 [closed]

How can I be able to setup a mathematica code using a Vandermonde matrix? We had to plot the interpolated polynomial and regular polynomial. I had this but we aren't supposed to use the built-in ...
125 views

### Create my own voice on Mathematica 12 [closed]

I want to create my own voice on Mathematica 12 and use it for this function SpeechSynthesize["Hello"] We can use theses voices on Mathematica ...
41 views

### Clouddeploy and iframes

I am trying to migrate from webMathematica to Mathematica online on my educational website: https://sameradeeb-new.srv.ualberta.ca I ran into the following two problems: 1) Having multiple iframes ...
74 views

### How to embed a plot drawn by Mathematica into a webpage

In this webpage for Calculus, page the author presented graphs of surfaces in 3D so that we can interact with (rotating, zooming). My question: can we create a graph using Mathematica and then ...
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1 vote
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### Alter maximum output size from Linux command line

I recently installed Wolfram Mathematica in a instance in Google Cloud using GPUs and I'm running it inside Jupyter Notebook, Python 3, using Wolfram Client library. However, big outputs, like a 400,...
• 149
137 views

### How to put a loop in a loop

I am doing some work with black-scholes. As commented within my code, I need my while loop to run 100 times. I am not sure if the best way to do this is with a nested argument or placing a for loop or ...
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### How to time shift x-axis in mathematica simulation?

I have a simulation from a system of equations that runs from 0 to 50 Normal = NDSolve[{A /. Parameter, A == .1}, {A[t]}, {t, 0, 50}]; That produces: Now ...
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### How to use Mathematica in AWS cloud?

I have a free account in AWS cloud for 1 year for $750$ hours. How to run Mathematica in AWS cloud? And is Mathematica chargeable in AWS cloud?
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### Can I use Mathematica to build a complex website? [closed]

I have made all of the pages in WIX. But there is one page, basically, a form page, that WIX currently don't provide dynamic feature. Given that mathematica also is good with Data analyses in the ...
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1 vote
335 views

### Finding the frequency of letters in a string

Given the following string: ...
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1 vote
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### webMathematica Settings in Wolfram Workbench

I have Wolfram Workbench installed in the Eclipse IDE. Now I am trying to setup the connection in the webMathematica plugin for Workbench to connect to a remote server installed with webMathematica. ...
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### How can I Reduce the covariance Matrix?

How can I reduce this covariance matrix? And also plot its eigenvalues? and how to compute its eigenvectors? Can we compute its eigenvalues and eigenvectors without reducing in compact form? ...
47 views

### How to calculate this limit？ [closed]

Here is my question: $\displaystyle\lim_{n\rightarrow \infty}n^2[(1+\frac{1}{1+n})^{n+1}-(1+\frac{1}{n})^{n}]=?$ Any hints will be fine. Thank you!
189 views

### POST request content type, huge performance difference

I have a page on web mathematica that reads the value of the POST request's payload and responds accordingly. I've noticed a huge difference in the time the server takes to respond depending on the ...
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### Which version of webMathematica should I use for mathematica 10.3?

Where can I find which version of webMathematica is compatible with which version of mathematica? The only hint I've found is this page: http://support.wolfram.com/kb/22167 but it's focused on end-of-...
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### Regression Line in Mathematica using FIT function

I dont know if I am confused or if I am doing this incorrectly. I have two data sets a={1,2,3,4,5} b={6,7,8,9,10} Mathematica will translate the sets as <...
86 views

### How to display a True/False table [closed]

Below is my written program ...
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1 vote
820 views

### Plotting a few Maclaurin Series in Mathematica

I would like to plot the Taylor polynomials for several functions. Specifically: Exp[Sin[x]] ( x^2 + Exp[ x ] )^( -1 ) and ...
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1 vote
133 views

### Use FIT to calculate regression line from two sets of data

I figure out how to figure out the regression line using fit {I need to use FIT} for one set of number. However, I have to combine two sets and figure out the regression line. ...
319 views

### Wolfram new products

Can someone elaborate on the products relating to Wolfram Cloud? They all seem the same. When I login to Wolfram Cloud there's: Wolfram One Wolfram Development Platform Wolfram Programming Lab ...
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### Low resolution of Math formulas in Wolfram Web Resources [closed]

I use Wolfram Web Resources extensively, but unfortunately, all of the displayed math is in low resolution. Is there a way of viewing (and copying) math in high resolution? For example: http://...
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### Best Wolfram tool for interactive web-based calculator

A colleague is considering re-implementing this online "Photon Propulsion Calculator" using a Mathematica-based product. I wanted to ask the community which product would be best. WebMathematica ...
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238 views

### webmathematica to share my game?

I wrote the code for a puzzle game. It's written in a notebook that I would like to share on the internet: ...
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1 vote
148 views

### limit values from RegionPlot3D?

I want to find the limit value (range) of "x", "y" and "z" on which above above function is positive for given range. for this i use ...
125 views

### Integration using Mathematica [closed]

Assuming $0<x,y<1$ and $0<v<1$, consider the function $f(x,y)=1+(1-2x)(1-2y)$. How to find the integral $I=\int_{\{xy+xy(1-x)(1-y)\leq v\}} \,f(x,y)\;dx \, dy$ using Mathematica or Matlab?...
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1 vote
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### Graph not plotting any points [closed]

f [x_] := (x + ln[x] - 3) Plot[f[x], {x, 0, 5}] How come this comes out with an empty graph? I tried this and same results: ...
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299 views

### Build API without the WolframCloud?

I'd like to have my code and api deployed, but not to the Wolfram Cloud. I have a an APIFunction, and I'd like to CloudDeploy it ...
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1 vote
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### Authentication for WebMathematica Apps?

Any good ways to implement authentication for WebMathematica apps. I am a novice to JSP and Java servlet technology. At tomcat level one could implement basic or digest HTTP methods. What I am ...
40 views

### How to select bottom three "norm" values and their corresponding matrices? [closed]

I calculated five random matrices of 6x3 (with some code which is already working) having name Subscript[randompop, j].Here is the output ...
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### How to deal with MathLinkException in webMathematica

I'm using webMathematica, my license supports a maximum of two kernels running at the same time. Sometime an error occurs, I've seen three at least (from webMathematica.log): ...
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253 views

### License not released after kernel is stopped for KernelTimeLimit reached? [closed]

Using webMathematica, doing massive tests of our functions (each call can take from 0 to 15 seconds). After a while we started getting lots of 403 Forbidden errors. webMathematica.log: ...
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### How to adapt MSPToExpression function in \$PrePrint?

I am introducing the mathematica Security (MSP module) to our system. The Document suggests use MSPToExpression as followed: ...
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1 vote
182 views

### Mathematica cannot find intersection of two functions [closed]

Why mathematica cannot solve this extremely easy equation? [![My functions]] g[x_] := -x + 2 h[x_] := 3 x f[x_] := -x^2 + 4 http: // i.stack.imgur.com/...
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