Mitchell Thurston

Last seen: 3 månader ago | Active since 2020

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I can't see the cosine graph. How do I generate the cosine graph using 2^10 samples?
You should be able to just get rid of the for loop, ydata = 5 + 10*cos(2*pi*time+pi/6)

4 månader ago | 0

Answered
I made a folder with 12 .fig files, I am attempting to convert these to jpeg using a loop.
You can do it by running this code while inside the Figures directory files = ls; % get filenames of everything in that directo...

4 månader ago | 0

Answered
Basic FFT Question: What range to sample the function in.
When you perform an FFT, it is assumed that the original signal is on a timespan from [0 to 2*pi]. When you pass these signals a...

4 månader ago | 0

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Cell joiner
You are given a cell array of strings and a string delimiter. You need to produce one string which is composed of each string fr...

10 månader ago

Solved

Find a Pythagorean triple
Given four different positive numbers, a, b, c and d, provided in increasing order: a < b < c < d, find if any three of them com...

12 månader ago

Solved

Dimensions of a rectangle
The longer side of a rectangle is three times the length of the shorter side. If the length of the diagonal is x, find the width...

12 månader ago

Solved

Create Volcano (or Atoll) martix. It is an extension of Bullseye matrix problem.
For example, if n=2 (maximum value), the output matrix should be [1 1 1 1 1; 1 2 2 2 1; 1 2 1 2 1; 1 2 2 2 1; 1 1 ...

12 månader ago

Solved

Create a Multiplication table matrix...
Create a product table in this format: P = [ 1 2 3 4 5; 2 4 6 8 10; 3 6 9 12 15; 4 8 12 1...

12 månader ago

Solved

Special matrix
Make a square matrix with this shape. For n=4 M = 1 1 0 0 1 0 1 0 0 1 0 ...

12 månader ago

Solved

Spot the rectangle
This problem is related to the 17x17 challenge. Given a matrix filled with ones and zeros, determine whether or not any rectangl...

12 månader ago

Solved

Pascal's Matrix
Given an integer n ≥ 0, generate the ( _n_+1) × ( _n_+1) lower triangular <http://en.wikipedia.org/wiki/Pascal_matrix P...

12 månader ago

Answered
How can I obtain the derivative of a vector? Displacement-Velocity but what about acceleration? I am using the space state formulation
(Altered the code provided so that it ran properly) clc; %command window clear;%clear workspace close all; % close figures ...

mer än 2 år ago | 1

| accepted

Answered
trouble coding for ODE's
this is definintely an inefficient way of doing it, but this accomplishes everything syms dx(t) x(t) m c k w % these are the te...

mer än 2 år ago | 1

Answered
How can I 'hold off' specific Field vector using "quiver" into a updated "drawnown" inside a plot?
I'm assuming you're calling quiver in the "quiver(x,y,u,v)" style, since you can't use 1 argument % After plot 1 is made hol...

mer än 2 år ago | 1

Answered
How to add regression line equation to a plot?
the most simple way I know of would be to add it to the legend you can add this to the last line of your code legend({'Data Po...

mer än 2 år ago | 1

Solved

Check if sorted
Check if sorted. Example: Input x = [1 2 0] Output y is 0

mer än 2 år ago

Solved

Rotate a Matrix by 90 degrees
Rotate a Matrix by 90 degrees Example: If the input is: X = 1 2 3 4 5 6 7 8 9 ...

mer än 2 år ago

Solved

Project Euler: Problem 1, Multiples of 3 and 5
If we list all the natural numbers below 10 that are multiples of 3 or 5, we get 3, 5, 6 and 9. The sum of these multiples is 23...

mer än 2 år ago

Solved

Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.

mer än 2 år ago

Solved

Doubling elements in a vector
Given the vector A, return B in which all numbers in A are doubling. So for: A = [ 1 5 8 ] then B = [ 1 1 5 ...

mer än 2 år ago

Solved

Create a vector
Create a vector from 0 to n by intervals of 2.

mer än 2 år ago

Solved

Flip the vector from right to left
Flip the vector from right to left. Examples x=[1:5], then y=[5 4 3 2 1] x=[1 4 6], then y=[6 4 1]; Request not ...

mer än 2 år ago

Solved

Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.

mer än 2 år ago

Solved

Find max
Find the maximum value of a given vector or matrix.

mer än 2 år ago

Solved

Get the length of a given vector
Given a vector x, the output y should equal the length of x.

mer än 2 år ago

Solved

Inner product of two vectors
Find the inner product of two vectors.

mer än 2 år ago

Solved

Arrange Vector in descending order
If x=[0,3,4,2,1] then y=[4,3,2,1,0]

mer än 2 år ago

Answered
solve function can't solve an inequality
I'm able to get a solution with defining k as a real symbolic variable syms k real ineqs = [0 < 320/9 - k/9, 0 < (9*k + (k/9...

nästan 3 år ago | 2

| accepted

Answered
For loop circles that wrap around another circle
Modified the calculation of alfa, R, and a slight change with the for loop clear; r=1; % small circles radius n=17; %number...

nästan 3 år ago | 0

| accepted

Answered
I wan to create a 3x3 matrix and this matrix needs to contains first 3 raws and last 3 columns of other matrix which is unknown.
With the original larger matrix you want the rows and columns from being "A" and the resulting 3x3 being "B", A = B(1:3, ... ...

nästan 3 år ago | 0