# Questions tagged [homework]

Homework questions are welcome, as long as they are asked honestly, explain the problem, and show sufficient effort. Please do not use this as the only tag for a question. Please do not add this tag to questions by other people unless they explicitly say that their question is part of their homework.

189 questions
Filter by
Sorted by
Tagged with
56 views

### Am I using DSolve correctly? [closed]

I'm new to Mathematica but I think I solved the problem shown below. I want to know if I solved it right. Your response will be much appreciated. ...
19 views

### How to disable autosimplification of boolean function? Or How to get Perfect Disjunctive Form?

In my university I have a task to get a perfect disjunctive form of a function in Mathematica, so I found necessary minterms and I want to get disjunction of them. I need to get 5 minterms, but I have ...
116 views

### Parametric Curves to cartesian equation

I have $x=t^2-3$ and $y=t+2$. I keep trying Eliminate and the output is always True. I just need to take these two curves and convert it to a Cartesian equation. ...
234 views

### How to check whether Laguerre polynomials are orthogonal?

I've got the problem with checking if Laguerre polynomials for n=1,...,10 are orthogonal. I have to create the list of these polynomials, then create the matrix of integrals from 0 to infinity. ...
119 views

### Find the square root using a recursive formula [closed]

I want to approximate the square root x=Sqrt[a] for $a>0$ using the the formula $x_{n+1}=\frac{1}{2}(x_n+a/x_n)$. How can I do this?
41 views

### Single toss of two dice [closed]

Does any one knows answer for this question related to probability? A pair of fair dice is tossed once. If the sum of the two numbers is greater than 9, the probability that one of the numbers is a ...
98 views

### Make Arrows Smaller

I have the following program that describes a 3D curve in space with an osculating circle and TNB vectors moving with the curve. The arrows indicating the TNB vectors are way too large making it seem ...
60 views

### Computing the average curvature of a curve [closed]

Compute the average curvature of the curve $\qquad r(t) = ⟨t \cos t,\, t \sin t⟩\ \mathrm{for}\ 0 ≤ t ≤ 2π$. Use Mathematica to arrive at an exact value and its numerical approximation. ...
32 views

### Need help with understanding a question concerning the power iteration method [closed]

I just need help understanding a question. I was given the question Use the power iteration method to estimate the spectral radius for (I - B A) given a tridiagonal coefficient matrix. Although,...
73 views

153 views

### How do I plot a Laplace transform?

I have been looking everywhere for help on this issue and cannot find a solution that works. Here is the assignment. I have figured out how to find the Laplace transform, but I do not know how to ...
81 views

### Drawing an approximate visualization of an inequality using ArrayPlot

I need to write a function that returns graphic visualization of the two-dimensional figure described with equation: $\qquad P = \{(x, y) \in R^2: 4+2x < x^2+y^2<9\}$ I have to use the n x n ...
39 views

### Finding tangents and curvature of a parametric curve in 3D [duplicate]

I am in a calculus 3 class and cannot figure out how to get Mathematica to solve for unit tangent, normal tangent, binormal tangent, and curvature without getting a supper messy result. This is the ...
78 views

### Monte Carlo simulation using modified rejection technique

Plot the probability density function $\qquad w(x)=(1/(1+x^2))(1/x^{0.5})$ for $(0 < x < 1)$ Make up the subroutine flowchart to get the random numbers $x$, using the modified ...
754 views

### For Loop and Sum

I am requested to do a sum of the first fifty positive even numbers by using For loop. The For loop that I created is ...
83 views

### Interval determination with mathematica [closed]

I am given the solution y=yo/(1-yo x^2). If yo>0, the solution is valid only on ( -1/sqrt(yo), 1/sqrt(yo) ). How is this determined? I need a proof like answer and I need it programmed in ...
80 views

### Creating matrices using a Do-loop

Here is an image of current assignment; I am not able to do step 6 to 8 When I try to do the Do-loop, it states that the {i, j} does not have appropriate bounds. ...
35 views

### Why are these arrows not plotting?

I'm very new to mathematica, so pardon me for such a simple question. I have tried to follow the syntax of the "Arrow" documentation(https://reference.wolfram.com/language/ref/Arrow.html), but I ...
70 views

### How can I make an arrow's shaft more visible?

{Graphics[{Arrowheads[.1], Arrow[{{0, 0}, {2, 1}}]}], Graphics[{Arrowheads[.1], Arrow[BezierCurve[{{0, 0}, {1, 1}, {2, 0}}]]}]} say I have the above code. Can I ...
46 views

85 views

### Application of ODE

I got to do some assignment for my Student Research. 1. Cat and mouse are in room which is shape in sqare . Cat is in one topic square, mouse in another one. In topic square oposite than cat position ...
107 views

### Basic Supply and Demand Question [closed]

Suppose that the quantity supplied S and the quantity demanded D for the price p of t-shirts are given by the following functions S(p) = −800 + 50p D(p) = 1900−40p Determine the prices for ...
468 views

### An efficient way to translate a triple for-loop from Matlab to Mathematica

This is my first post on StackExchange, so if I violate any etiquettes, I apologize in advance. I am a senior engineering student who has been using Mathematica for a year now. For one of my classes, ...
101 views

### Simulating the motion of the Earth around the sun based on Kepler’s laws

I am using Mathematica 10.3. I want fo perform a computational analysis of the motion of the Earth around the sun based on Kepler’s laws. Here is my code so far. ...
283 views

### Analyze stability of equilibria using Routh-Hurwitz conditions

For an assignment, I need to analyze the stability of a system very close to equilibrium, using "Routh-Hurwitz conditions". I have already obtained the characteristic equation of my system, but I do ...
80 views

### Solve won't return an answer for a set of four equations

So I was doing my homework and this system popped up, so I was trying to solve it but Mathematica has just been stuck with it for two days. It won't give me an answer. I am trying to get the code to ...
271 views

### Newton's Method

Problem statement: I'm currently new to Mathematica and have been trying to solve this problem. I was digging around and found this code: ...
159 views

### Infinite While loop

I have an exercise where I need to input a multi-digit number and evaluate the square of the sum of its digits. I am new to Mathematica and I can't figure out why I'm getting an infinite loop. This is ...
87 views

### Solving and plotting a linear initial value problem [closed]

As my first Mathematica assignment, I need to solve and then plot a linear IVP. I understand that I must use DSolve. However, when attempting to plot my output, ...
63 views

### Frequencies for Fourier coefficients [duplicate]

I have been given the task of calculating the frequencies to which the fourier coefficients correspond. So my input is a discrete signal [1,4,0,1], which gives me <...
230 views

### Using a numerical solver to solve a system of ODEs [closed]

Consider the competition model defined by dx/dt = x (2 − 0.4 x − 0.3 y) dy/dt = y (1 − 0.1 y − 0.3 x) Where the population x(t) and y(t) are measured in the thousands and t in years. Use a ...
61 views

### Need help in dealing with messages from Solve and Reduce [closed]

I have a two part question, I am trying to solve what should be a very straightforward equation, but I keep getting messages. Here is the equation ...
188 views

### Creating a CDF file from a Manipulate expression

I have created a code in Wolfram Mathematica. I want it to be CDF file. I selected File-> CDF Export -> Standalone. I was told that the file doesn't work but I don't know why. ...