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A résolu
Given a matrix, swap the 2nd & 3rd columns
If a = [1 2 3 4; 1 2 3 4; 1 2 3 4; 1 2 3 4]; then the result is ans = 1 3 2 4 1 3 2...
10 jours il y a
A résolu
Create an arrow matrix
An arrow matrix is a square matrix that contains ones on the diagonal, the last column, and last row. ...
10 jours il y a
A résolu
Calculating Student Grades
The matrix grades contains raw grades for 7 students who took your course. Each row represents a different student. The first 7 ...
11 jours il y a
A résolu
Generate this matrix
Generate the following matrix. n = 2; out = [-4 -3 -2 -1 0 -3 -2 -1 0 1 -...
11 jours il y a
A résolu
Find the minimum of the column-maximums of a matrix
Given a matrix A, find the maximum value of each column, then return the smallest of those maximum values (ie return the minimum...
11 jours il y a
A résolu
Calculate the mean of each half of a matrix
Given a matrix with an even number of columns, n, return a 1-by-2 row vector where the first element is the mean of all the elem...
11 jours il y a
A résolu
Matrix Quadrants
Write a function that takes N as the input, and outputs a matrix whose upper-left (NxN) quadrant contains all ones, the lower-ri...
11 jours il y a
A résolu
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 ...
11 jours il y a
A résolu
subtract central cross
Given an n-by-n square matrix, where n is an odd number, return the matrix without the central row and the central column.
16 jours il y a
A résolu
Sum of series I
What is the sum of the following sequence: Σ(2k-1) for k=1...n for different n?
16 jours il y a
A résolu
Calculate the Number of Sign Changes in a Row Vector (No Element Is Zero)
For a row vector: V=[7 1 2 -3] there is one sign change (from 2 to -3). So, the function you write must return N=1. F...
16 jours il y a
A résolu
Getting the indices from a vector
This is a basic MATLAB operation. It is for instructional purposes. --- You may already know how to find the logical indices o...
17 jours il y a
A résolu
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...
24 jours il y a
A résolu
Vector creation
Create a vector using square brackets going from 1 to the given value x in steps on 1. Hint: use increment.
24 jours il y a
A résolu
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 ...
24 jours il y a
A résolu
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 to use d...
24 jours il y a
A résolu
Whether the input is vector?
Given the input x, return 1 if x is vector or else 0.
24 jours il y a
A résolu
Get the length of a given vector
Given a vector x, the output y should equal the length of x.
24 jours il y a
