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**Content Feed**

Solved

Upper triangular matrix

Create a function to retrieve the upper triangular matrix of a matrix (without using tril). The matrix will always be square. ...

4 hours ago

Solved

compter le nombre de zéros dans une matrice

écrire une fonction count_zeros qui prend en entrée une matrice M et détermine le nombre de zéros dans une matrice

1 day ago

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Clamper Function

Create a function that emulates a clamper circuit Given sin wave, t and the constant value for clamping

2 days ago

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Create an arrow matrix

An arrow matrix is a square matrix that contains ones on the diagonal, the last column, and last row. ...

3 days ago

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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...

3 days ago

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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...

3 days ago

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Find Closest Constant

Given a number x, return the value that is closest to x from this list of constants: 0, 1, , e, , (also known as ). For exampl...

3 days ago

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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...

4 days ago

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Sub-Diagonal Sum

Given a (m x n) matrix and a value r {1,-1}, change every element to the sum of the diagonal led by the element. r=1 > regular ...

4 days ago

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Find the moving-average of the elements of a vector

Example Input vector: [1 2 3 4] output vector: 1st element=1/1, 2nd element=(1+2)/2, 3rd element=(1+2+3)/3, 4th element=(1+2...

5 days ago

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Latest Question On Cody

Get the problem number of the latest submitted Problem on Cody. Copying the test suite code might not help.

5 days ago

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What gear ratio does the cyclist need?

A cyclist (perhaps including our famed Codysolver the cyclist <http://www.mathworks.com/matlabcentral/cody/players/1841757-the...

12 days ago

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Operate on matrices of unequal, yet similar, size

You may want to add a vector to a matrix, implying that the vector is added to each column of the matrix. Or multiply a 3x4x5 ma...

13 days ago

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Pi Estimate 1

Estimate Pi as described in the following link: <http://www.people.virginia.edu/~teh1m/cody/Pi_estimation1.pdf>

13 days ago

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sinus de pulsation a

Ecrire une fonction sinat qui prend en entrée un vecteur t (de valeurs croissantes) et renvoie un vecteur y de de même dimensi...

13 days ago

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Find smallest integer type to accommodate your number

MATLAB supports 1-, 2-, 4-, and 8-byte storage for integer data. Find the smallest integer type to accomodate a scalar integer. ...

17 days ago

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Create different color vectors.

When producing figures with multiple lines on, you often want the lines to all be visible and different colors. Given the need f...

18 days ago

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Linear Motion 1

An object travels N feet in the first second of travel, N feet again during the second second of travel and N feet again during ...

26 days ago

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Visualization of experimental data across a surface

Assume that you have taken data across the surface of a sample, for example sheet resistance. The data is stored in a Nx3 matri...

26 days ago

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Magnitude of Balancing Force

A box weighing W1 pounds is placed where its center of mass is located d1 ft from the fulcrum. A balancing force is placed at th...

26 days ago

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Array Concatenation (2)

Given two matrices, a and b, concatenate the two matrices vertically, i.e., the number of rows of the result should be equal to ...

1 month ago

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Array Concatenation (1)

Given two matrices, a and b, concatenate the two matrices horizontally, i.e., the number of columns of the result should be equa...

1 month ago

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Test if a matrix is symmetric

Write a logical function that returns 1 if the input matrix is symmetric and 0 otherwise.

1 month ago

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Count the Number of Undirected Cycles in a Graph

Given a symmetric adjacency matrix, determine the number of unique undirected cycles. For example, the graph represented by adj...

1 month ago

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Change a specific color in an image

The ability to change colors can be a useful tool in image processing. Given an m x n x 3 array (much like CData in images), fin...

1 month ago

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Make blocks of color

Given a (Nx3) sequence of RGB colors, I want to create a (numRowBlocks x numColBlocks x 3) image comprising (blockSize x blockSi...

1 month ago

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Convert a given Character to its decimal equivalent value

Convert a given character to its decimal equivalent value according to the ascii table. if x = '!'; y = 33; if x = 'u'; ...

1 month ago

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Sequence

Let S be a sequence of numbers Let Find for some , where and . Update - test suite cleaned up on 2-9-22

1 month ago

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Convert RGB triplet to ColorSpec string

This is the inverse to <http://www.mathworks.com/matlabcentral/cody/problems/42612-convert-colorspec-string-to-rgb-triplet this ...

1 month ago