All Questions

I have a curve in 3D space which is green curve in the following picutre The code for generating the curve is as follows: ...

I have a for loop that produces a few line plots. After it is produced, it is appended together, and I'm using the "Show" command to combine the plots together. As shown in the example code below: <...

I have a html formatted string: ...

I have a for loop that makes plots iteratively, in between the plots, I would like to draw a line in the notebook. Is there a command that is the equivalent of doing this: https://reference.wolfram....

I would like to know the practical differences and implications between NonlinearModelFit and GeneralizedLinearModelFit. As I ...

Could someone kindly direct me to suitable documentation, Wolfram or otherwise, to connect Mathematica to an ElasticSearch instance. I don't need anything complicated just sufficient to write a record ...

I have a nested list and I want to subtract from that list based on elements of another list, where each element of each nest subtracts the other list. For example, getting from A and B to C A = {{...

I am making a framed plot. I want to remove some of the tick labels but display all the ticks. For example, I want {-1,0,1} as the the tick labels on the y axis but want to display all the ticks ...

I have written a small program to find the natural frequencies of some system using an energy approach. v1 and t1 are the potentials and kinetic energy of the beam. v2 and t2 are the potentials and ...

I have a list with n occurrences of a certain element. I have a second list with Length[lis2] = n I would like to replace the nth occurrence of the certain ...

I have a set of linear differential equations and are written in this format [X']=[Y]-[R] where [P][Y]=[Q] My actual P matrix size is of 20x20 and Q is of 20x1 and Y is of 20x1. I have written this ...

I have a code:- Plot[Evaluate@PDF[NormalDistribution[1.6, 0.2], x], {x, -6, 6}] And then I got the warning: ...

Problem 22.13 Make raster images of the letters of the alphabet at size 20, then make a graph of the 2 nearest neighbors of each one. My solution ...

I wish to find the minimum of a function where the variables are integers. Here is a simple minimum working example (my actual function is much more complicated). ...

I used the InterpolatingPolynomial function to get a polynomial that meets my points. But I noticed that there is a deviation in the final intervals. ...

Slight background: I am trying to find the coexistence reduced pressure ($p_r$) of a Van der Waals fluid at a reduced temperature of 0.85, this requires finding the solution to the following system of ...

I have a set of points in 2D generated by doing a DimensionReduce on a list of colors: ...

Can someone please help me how to connect from Wolfram Mathematica to Nodejs through WSTP?

The following code works perfectly For[i=1,i<4,i++,Print[i]] However, when I break this into different lines, it stops working. Moreover, the braces appear to ...

I want to colour the points in a ListPlot with a list of colours, i.e. something like ...

In the documentation for ListPlot3D we see that there is the option Method, but which methods are avalaible? I cannot find a documentation page for it. If that is ...

Im trying to extract a list of times from a list of Dates from the Sunrise function ...

What is the difference between /. and /; in Wolfram Mathematica How would you apply them both and what situations are each of them appropriate to use?

The entities representing the days of the week sort alphabetically: ...

I am trying to get an APIFunction to send valid JSON. This is my demo function. ...

I have two implicitly defined variables, $\sigma_D$ and $\sigma_M$ one of which is a function of the parameter $v$. In particular, $\sigma_D = F(\sigma_D,v)$ where $F(\sigma_D,v)=0$ if $ c_D < -0....

I have a huge module which outputs a function G I want to transfer to another module. The specific function is G= (72 (97 + 57 s))/(55 (55 + 96 s + 36 s^2)) The second module is short (the ...

In order to make my question clear, I would like to use a simple expression as an toy example. Suppose we have an expression, which is, f = a + 2*b + c Now I ...

I have this couple of equations : $ \partial_\mu \partial^\mu z^i + G^{i\bar{p}} (\partial_j G_{k\bar{p}} ) \partial_\mu z^j \partial^\mu z^k + G^{i\bar{j}} (\partial_{\bar{j}} G_{k\bar{l}} ) \...

I have the expression ...

I have all the equations down to manipulate the tangent line on the graph... but the tangent line is too long, what would be the best way to shorten it? ...

I have a list which contains some matrices. Some of the matrices contain Overflow[] elements. I want to delete these matrices. ...

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My situation is similar to having a Cos and Sin functions that would combine to the profile of the envelope but the envelope is offset horizontally by some dt. It would be something like aCos(t+dt)+ ...

I answered part 1 but need help in part 2 and 3. Please help..

I have expressions with terms that are products of factors. Some of the factors are expressions that depend on a single specific variable. I would like to replace those factors with constants and ...

I am a software developer, and it has been far too long since the last time I've needed to do any math this complicated. I've forgotten a lot of the proper terminology, which has made finding answers ...

I would like to solve: $$ \int _0^1\int _y^11dxdy $$ In one function call to Integrate[]. However, evaulating Integrate[1, {x, y, 1}, {y, 0, 1}] (*1-y*) Gives ...

I am in Honors Math Analysis and I got an inverse trig problem, but it has a variable in it. I'm not sure what the answer is. arctan(cos(3x/4))

I have this couple of equations in differential forms language: $ \Delta z^i \star {\bf{1}}+ G^{i\bar{p}} (\partial_j G_{k\bar{p}} ) dz^j \wedge \star dz^k + G^{i\bar{j}} (\partial_{\bar{j}} G_{k\bar{...

The function defined below has three frequencies 2, 4 and 10. How to use the Fourier transform (FFT) to show these frequencies? ...

Consider the following: ...

Please be kind enough to give me some indication on how to use the Disk graphics primitive in any of these cases: I want to calculate the area and perimeter of the ...

Suppose I have a code block EchoOff[CompoundExpression[ ..., Echo[...,"echo 1",f], Echo[...,"echo 2",g], ... ]] Is there a function ...

I'm trying to repeat each element of a list x number of times, where x is the corresponding element of the same position in ...

I have a rank four SparseArray of dimension {40, 40, 40, 40}. I wish to apply a linear operator to it, whose form I know abstractly. That is, I have a simple closed form for the action of the operator ...

I am trying to run a simple code on Mathematica. However, it is not running for some reason. What mistake am I making? ...

Is there a way to plot a simple diagram in Mathematica with colored areas, like a phase diagram, for the different ranges of values of a function such $f(a,b)=(1-a)/(b+2)$, for various combinations of ...

Maybe due to my limited experience with PDEs solving I could not find the answer to the following issue. Let's say we have a simple advection along a line: ...

Essentially, I have a second-order differential equation given by ode below. In order to solve it, I need to obtain an asymptotic solution where $g(x)$ must vanish at infinity which will be used after ...