# Mitchell Thurston

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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 ...

1 month ago | 1

| accepted

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...

1 month ago | 1

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...

1 month ago | 1

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...

1 month ago | 1

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 ...

2 months 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...

2 months 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.

2 months 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 ...

2 months 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 ...

2 months ago

Solved

Whether the input is vector?

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

2 months ago

Solved

Get the length of a given vector

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

2 months ago

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...

3 months ago | 2

| accepted

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...

3 months ago | 0

| accepted

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, ... ...

3 months ago | 0

Solved

Find the maximum number of decimal places in a set of numbers

Given a vector or matrix of values, calculate the maximum number of decimal places within the input. Trailing zeros do not coun...

1 year ago

Solved

Sum all integers from 1 to 2^n

Given the number x, y must be the summation of all integers from 1 to 2^x. For instance if x=2 then y must be 1+2+3+4=10.

1 year ago

Solved

Magic is simple (for beginners)

Determine for a magic square of order n, the magic sum m. For example m=15 for a magic square of order 3.

1 year ago

Solved

Make a random, non-repeating vector.

This is a basic MATLAB operation. It is for instructional purposes. --- If you want to get a random permutation of integer...

1 year ago

Solved

Roll the Dice!

*Description* Return two random integers between 1 and 6, inclusive, to simulate rolling 2 dice. *Example* [x1,x2] =...

1 year ago

Solved

Number of 1s in a binary string

Find the number of 1s in the given binary string. Example. If the input string is '1100101', the output is 4. If the input stri...

1 year ago

Solved

Return the first and last character of a string

Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...

1 year ago

Solved

Create times-tables

At one time or another, we all had to memorize boring times tables. 5 times 5 is 25. 5 times 6 is 30. 12 times 12 is way more th...

1 year ago

Solved

Getting the indices from a vector

This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to <http://www.mathworks....

1 year ago

Solved

Determine whether a vector is monotonically increasing

Return true if the elements of the input vector increase monotonically (i.e. each element is larger than the previous). Return f...

1 year ago