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Reverse the vector
Reverse the vector elements. Example: Input x = [1,2,3,4,5,6,7,8,9] Output y = [9,8,7,6,5,4,3,2,1]

3年以上 前

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Swap the first and last columns
Flip the outermost columns of matrix A, so that the first column becomes the last and the last column becomes the first. All oth...

3年以上 前

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Generate a vector like 1,2,2,3,3,3,4,4,4,4
Generate a vector like 1,2,2,3,3,3,4,4,4,4 So if n = 3, then return [1 2 2 3 3 3] And if n = 5, then return [1 2 2...

3年以上 前

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Return area of square
Side of square=input=a Area=output=b

3年以上 前

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Maximum value in a matrix
Find the maximum value in the given matrix. For example, if A = [1 2 3; 4 7 8; 0 9 1]; then the answer is 9.

3年以上 前

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Finding Perfect Squares
Given a vector of numbers, return true if one of the numbers is a square of one of the other numbers. Otherwise return false. E...

3年以上 前

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Return the 3n+1 sequence for n
A Collatz sequence is the sequence where, for a given number n, the next number in the sequence is either n/2 if the number is e...

3年以上 前

質問


Cody Problem 19. Swap the first and last columns
Hey I found problem with the Test 4 from the Cody Problem 19: Swap the first and last columns here is my solution: function B ...

3年以上 前 | 2 件の回答 | 0

2

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Summing digits
Given n, find the sum of the digits that make up 2^n. Example: Input n = 7 Output b = 11 since 2^7 = 128, and 1 + ...

3年以上 前

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Column Removal
Remove the nth column from input matrix A and return the resulting matrix in output B. So if A = [1 2 3; 4 5 6]; ...

3年以上 前

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Find the numeric mean of the prime numbers in a matrix.
There will always be at least one prime in the matrix. Example: Input in = [ 8 3 5 9 ] Output out is 4...

3年以上 前

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Find the longest sequence of 1's in a binary sequence.
Given a string such as s = '011110010000000100010111' find the length of the longest string of consecutive 1's. In this examp...

3年以上 前

質問


Cody Problem 14. Find the numeric mean of the prime numbers in a matrix.
I found difficulties with the 14th Problem on Cody here is my solution: function out = meanOfPrimes(in) [a,b]=size(in) sum = ...

3年以上 前 | 4 件の回答 | 0

4

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Fibonacci sequence
Calculate the nth Fibonacci number. Given n, return f where f = fib(n) and f(1) = 1, f(2) = 1, f(3) = 2, ... Examples: Inpu...

3年以上 前

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Back and Forth Rows
Given a number n, create an n-by-n matrix in which the integers from 1 to n^2 wind back and forth along the rows as shown in the...

3年以上 前

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Make a checkerboard matrix
Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. The a(1,1) should be 1. Examp...

3年以上 前

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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...

3年以上 前

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Who Has the Most Change?
You have a matrix for which each row is a person and the columns represent the number of quarters, nickels, dimes, and pennies t...

3年以上 前

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Add two numbers
Given a and b, return the sum a+b in c.

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Select every other element of a vector
Write a function which returns every other element of the vector passed in. That is, it returns the all odd-numbered elements, s...

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Triangle Numbers
Triangle numbers are the sums of successive integers. So 6 is a triangle number because 6 = 1 + 2 + 3 which can be displa...

3年以上 前

質問


checkerboard matrix (Problem Nr 4 from Cody)
I found this problem on Cody: Given an integer n, make an n-by-n matrix made up of alternating ones and zeros as shown below. T...

3年以上 前 | 1 件の回答 | 0

1

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Find the sum of all the numbers of the input vector
Find the sum of all the numbers of the input vector x. Examples: Input x = [1 2 3 5] Output y is 11 Input x ...

3年以上 前

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Make the vector [1 2 3 4 5 6 7 8 9 10]
In MATLAB, you create a vector by enclosing the elements in square brackets like so: x = [1 2 3 4] Commas are optional, s...

3年以上 前

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Times 2 - START HERE
Try out this test problem first. Given the variable x as your input, multiply it by two and put the result in y. Examples:...

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Colored graph (Known function)
I would like to create a graph similar to this one: (I already know the Mathematical function) I can draw the function, but t...

3年以上 前 | 1 件の回答 | 0

1

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質問


create a Moving Box Simulation in 1D
I am trying to create a simulation like this one: And I have problems making the rectangular box moves, here is the function ...

3年以上 前 | 2 件の回答 | 0

2

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PD controller (Time domain)
I would like to design a PD controller, to control a moving mass (=1Kg) along the x-axis so it moves from rest (point A) to anot...

3年以上 前 | 2 件の回答 | 0

2

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質問


create a three-dimensional surface plot
Hello everybody! I want to create a three-dimensional surface plot using the function surf, but unfortanatley there is a bug in...

4年弱 前 | 1 件の回答 | 0

1

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