Questions tagged [education]

Questions about the use of Mathematica/WL in education and/or about teaching Mathematica, or learning it.

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Looking for introduction to equation solving [closed]

I am a beginner with Mathematica. I wanna learn how to make a program to solve a system of algebraic equations related to my master [?], so I am looking for a way to learn this in as little time as ...
2
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0answers
78 views

Strain-stress relationship in spherical coordinates with Poisson's ratio [closed]

I am wondering if there is a way to get the relationship between strain and stress in spherical coordinates with Poisson's ratio. I read the documentation here: https://reference.wolfram.com/...
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2answers
55 views

Two variable derivative function mathematica [closed]

I am trying to find the point where the partial derivatives are equal to zero. The function I am analyzing: f[x, y] := 3 xy - x^2 y^2; The area it is ...
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0answers
106 views

Will my procedure be correct?

I am facing a problem when trying to solve the exercise of page 210 of the book GRAPHICS with MATHEMATICA, FRACTALS, JULIA SETS, PATTERNS and NATURAL FORMS of the authors CHONAT GETZ and JANET ...
2
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2answers
137 views

How can I compute $\sqrt 5$ to 200 places in base 40 arithmetic

What code should I write to compute $\sqrt{5_{40}}$ to 200 places in base 40 digits.
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0answers
71 views

Detection the coordinates of all points of a curve on an image file [duplicate]

I have a plot of a curve (the black curve without dashes) on an image file.jpg: http://s000.tinyupload.com/index.php?file_id=48857135704766357735 I'd like to detect the coordinates of all point of ...
6
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1answer
473 views

How can I define a variable so it will be treated as a real number?

I want to define a variable like d as a Real variable and then using that in the other equation like that: $\qquad d$ is Real $\qquad f = 5 + (1 + i) d$ But ...
0
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2answers
246 views

Mathematica problem- consecutive integers

Question: The sequence of consecutive integers 140, 141, 142, 143, 144, 145, 146, 147, 148 consists only of composite (non-prime) numbers, and has length 9. Find the longest sequence of consecutive ...
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1answer
89 views

Understanding the question

Let n be the integer shown below: ...
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1answer
46 views

Trying to find how to find how many prime factors have an odd exponent?

Hi I am doing a question for Mathematica and I'm having difficulties.The question is in the prime factorization of n, how many prime factors have an odd exponent? The given n is shown below (very ...
1
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1answer
938 views

Finding slope from a 2D Plot

Imagine I have a set of data, the plot is as following(just as an example consider a Gaussian curve): Is there any way to obtain the slop of this curve slop and plotted just using the initial data. ...
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1answer
166 views

PDE with substitution - proving the correctness of the substitution

I have the differential equation: $$\frac{\partial C}{\partial t} = D \frac{\partial^2 C}{\partial z^2}$$ to solve it, the author of my book carries out the following replacement: $$-2\zeta \frac{...
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47 views

Proving $d(dx)=d^2x$

Is it possible to carry out the following differential in Mathematica? $$d(dx) = d^2x$$ I tried to write: Dt[1*Dt[x]] the result is: ...
2
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1answer
67 views

Highschool teachers based in Australia using Mathematica ? [closed]

Would like to make contact, I can supply my email. thanks
2
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1answer
656 views

Step by step solution of a differential equation - Call Wolfram|Alpha in Mathematica

I know that it's possible to get the step by step solution of a differential equation calling Wolfram in Mathematica. For example: ...
3
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0answers
98 views

How to visualise Mathematica code and how to become a better coder [closed]

I seem to be using functional coding frequently. However, it does not come naturally and I usually copy from example, and then adapt for my own. How do you recommend I improve as a coder? I would ...
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1answer
307 views

Integral of $1/x$ with x real in Mathematica [duplicate]

I'd like to get: $$\int \frac{1}{x} dx = \log |x|$$ in Mathematica. I don't know how impose that $x$ is real. If I run: Integrate[1/x,x] Mathematica gives me $\...
2
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2answers
39 views

Graphics issue when Assigning Expressions

I was under the impression MMA directly substituted everything when assigned. Obviously I'm missing something subtle with either how substitution works in a notebook or how the ...
0
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1answer
64 views

Why it doesn't solve this? [duplicate]

Why Mathematica gives me an empty brackets {} when I ask it to solve this equation? Solve[29.6793984 + 3.213378*b + 1.606689*Sqrt[1 - 4*b^2] == 0, b]
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6answers
738 views

Best way to expand vocabulary of Mathematica functions?

I'm enjoying slowly learning Mathematica but noticing one skill I'm lacking is a comprehensive vocabulary of Mathematica functions. I was wondering if members would mind sharing some strategies they ...
1
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1answer
248 views

Cloud-based random question generator

Is there any way to create a micro site that generates a random question type and keeps the same question until the right answer has been inputted? I tried ...
2
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1answer
98 views

Doubt using RegionCentroid [closed]

TuI know an equation that gives me the barycenter of a circle: r = 5; H = r; y = (3 (2 r - H)^2)/(4 (3 r - H)) // N $1.875$ Using RegionCentroid on a solid I ...
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3answers
76 views

Computing $\bigcup_{n=1,5}X_{n}$? when $X_{n}=n+1,n+2,…,2n$

How do I correctly compute $\bigcup_{n=1,5}X_{n}$? when $X_{n}=n+1,n+2,...,2n$ for each $n \in \mathbb{N^{+}}$? When I do the calculation manually, I get the following results: $n=1:\{2\}$ $n=2:\{3,...
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1answer
113 views

Visualizing a geometric series

I attempted to graph the representation of the geometric series, everything works fine except when I increase "r" to a certain value(see figure 1 and 2 below), the horizontal lines begin to cross the ...
1
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2answers
78 views

Plotting issues with n-root function

I've been getting issues with plotting a function I've written to calculate the maximum height a floating body can float in a polytrope atmosphere dependant on a weight, here is the function; ...
3
votes
1answer
379 views

How to plot a graph with a condition? [closed]

I have been trying to get codes to plot a given graph together with its condition. The equation is s(t) = 976((0.835)^t - 1)) + 176t for 0 ≤ t ≤ 20 I have surfed ...
6
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1answer
143 views

Using CloudDeploy to build a website for diagrams for Physics/Math teachers

I create a lot of diagrams in Mathematica like the one below for my physics and math study guides. What I'd like to do is create a website where teachers could rapidly customize images like this and ...
3
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2answers
972 views

Formula for the midpoint of a line segment

I am taking pre-calculus at my school. We are required to use Mathematica. We have been doing simple stuff to get used to this program. Before this, I have never have used it. Here what I have been ...
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1answer
129 views

Generate example data variance and biased variance [closed]

I'd like to generate some example data for this equation related to Bessel's correction. What is a way to generate data for first part of the equation (in the picture below). One way to approach is to ...
5
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1answer
555 views

What is not an expression in the Wolfram Language? [closed]

Everything Is an Expression, or In fact, everything you type into the Wolfram Language is treated as an expression. The cool cliché confused me for a long time. The following two statements are ...
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0answers
106 views

Graphing the tangent to a curve in real time with Manipulate [duplicate]

The function $4-x^{2}-2y^{2}$ Set $y = 1$ Then <1,1,1> And its derivative at $y = 1$ is $$f'(x,1) = -2x$$ The following plot the curve at $y = 1$ intersecting the surface, and the derivative ...
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1answer
137 views

NonlinearModelFit understanding [closed]

I have a trouble with NonlinearModelFit questions. Question: V is a function of T and ...
3
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0answers
114 views

Limit of an infinite nested radical?

Is it possible to compute the limit of this infinite nested radical in Mathematica: Limit[Sqrt[n+Sqrt[n+Sqrt[n+Sqrt[n+...]]]], n->0]
2
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0answers
139 views

Mathematica Progression Path from Apprentice to Guru [closed]

There's an excellent set of responses to a question about learning Python on stack overflow. As there seems to be a large number of Mathematica experts here, it seems of value (to me at least) to ask ...
5
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1answer
43 views

Speak stops on first Hyphen with IntegerName

IntegerName returns the text of an integer. However, when Speak is applied to the result it stops at the fist hyphen. For ...
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0answers
81 views

How do I use Mathematica to extract data points from DICOM images? [closed]

I have few DICOM images whose data points I would like to extract and probably export (which would really be excellent) to an excel file.
5
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1answer
271 views

need help to enter the orthogonal sign, the upside down T.

I have search on Google and never came across any idea how to enter this damn sign. would anyone give me some hint?
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1answer
332 views

Solving an ODE using the Taylor Method Help?

Not sure how to proceed after this... ...
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3answers
506 views

How do I recursively calculate this equation and generate a list of iteration?

How do I write a recursive equation to compute a list of answers? I tried NestList, but it didn't work. ...
8
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2answers
269 views

Resources to learn about Neural Nets using Mathematica?

I'm interested in learning about Neural Nets and I'd really like my instruction to be in Mathematica if possible. For instance, a tutorial like this one: http://neuralnetworksanddeeplearning.com/...
1
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1answer
345 views

Timeline Plot with Date Intervals and Caption Array

I'm trying to achieve something similar to this example mentioned in the mathematica website below (https://reference.wolfram.com/language/ref/TimelinePlot.html), except I'm trying to get the event ...
2
votes
1answer
139 views

Why does this whole number have a recurring value? [duplicate]

I have a math question which that may seem simple to some but not to me if you where to do the calculation 12.30 * 12 it would equal 147.60 but why is that when I show the answer to more then two ...
3
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1answer
234 views

Drawing a figure showing an $n$-gon and its dissection into triangles

I don't have so much experience with Mathematica. Could anyone help me to reproduce this picture with Mathematica?
1
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1answer
103 views

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: ...
3
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0answers
2k views

List of amazing things you can do with Mathematica [closed]

What is the coolest (amazing) thing you can do with Mathematica? for instance there are my favorite things Automating xkcd Diagrams Extending Van Gogh’s Starry Night with Inpainting Making ...
2
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1answer
92 views

What syntax refers to “this notebook” object?

I want a notebook to automatically save after any cell is evaluated. I found that I should use the command SetOptions[XXX, NotebookAutoSave -> True] to do ...
17
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2answers
933 views

Do[ ]s and Don't[ ]s when teaching Mathematica in undergraduate courses

Question motivated by some horrific homework-related posts that I don't dare to link: What are the top Do's and Dont's when teaching Mathematica to undergrads? I don't ask for the design of a ...
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1answer
121 views
2
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1answer
374 views

Resources for bioinformatics or computational biology

I am looking for some textbooks/websites to learn applications of Mathematica to bioinformatics/computational biology. Searching on Amazon and Wolfram books section did not result in any direct hits. ...
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2answers
701 views

How to create a series using For loop.? [closed]

i want to create a series such as 10^n-1 * 10^n-2 *.......... * 10^2 * 10^1 using for loop ; here is my code. For[n=1, n<18, a=10^n; n++, b=(10^n)*a;]; ...