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Best Problem Elections
When I am writing those words, there are 2002 problems on Cody. Many of them are simply wonderful. Do you remember which of them...

más de 9 años hace

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Calculate area of sector
A=function(r,seta) r is radius of sector, seta is angle of sector, and A is its area. Area of sector A is defined as 0.5*(r^2...

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Calculate inverse matrix in square matrix
A=eye(3) Calculate inverse matrix of given input. B=function(A) ans = 1 0 0 0 1 0 ...

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Cell Source Index
Suppose that C is a cell array whose elements consist of row vectors of elements of the same type. For example, C could be a ce...

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Log of a number
Write a script that will give the log of x as output.

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Respondida
If I select an element in a matrix, say MAT(2,2), how to find how many elements of the same value of MAT(2,2) in the matrix are "connected" to it.
You need bwconncomp <https://it.mathworks.com/help/images/ref/bwconncomp.html> For example: Mat=[1 2 3 4 2;2 2 2 2 0;...

más de 9 años hace | 2

Respondida
how to change or compliment a particular bit in the binary string?
Here it is a=50; b=dec2bin(a) pos = 4; b(pos) = char(97-double(b(pos)))

más de 9 años hace | 1

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string to number conversion with mixed values
str1 = 'index_N=10' str2 = 'index_M=5' sub1 = str1(7:end) sub2 = str(7:end)

más de 9 años hace | 0

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How do i adjust the spacing between the slices of my stacked images?
First, most probably you don't want to stack them in the 4-th dimension as you wrote rgb4D = cat(4, IA, IB, IC, ID); Bec...

más de 9 años hace | 0

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Adding each element
Add the each element of the matrix.

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What is Title of Cody Challenge 42?
Given a Cody Challenge number return its Title. *Input:* Cody Challenge Number *Output:* Title of the Cody Challenge ...

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Deriving a function using the difference quotient
Write a function that evaluates the derivative of a function in a given point using the well-know formula of the difference quot...

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Create an m x n array consisting only of an input value.
Create an array with m rows and n columns wherein all entries are assigned the input value x.

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Find files with extension ext in the current directory
List all files with extension 'ext' in the current directory. Return a char matrix with the name of files in rows. Return 0 if...

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For a given linear index as input for n sized square matrix, find corresponding row and column.
If input is 1, the row and column will be 1 and 1 respectively.

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Airline Ticket Mod7 Checksum
There are 13 digits in an airline ticket number. If an airline ticket number is valid, the 13th digit should be the remainder of...

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Corresponding letter to ASCII code.
Given the letter, the output will show the corresponding ASCII code.

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matrix zigzag
Unfold a 2-D matrix to a 1-D array in zig-zag order, e.g., for matrix [ 1 2 3 ; 4 5 6 ; 7 8 9 ] the resulting 1-...

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"Power matrix" of two vectors
Given two row vectors x,y of lengths m and n (respectively), create an m x n matrix whose i,j entry is x(i)^y(j).

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Permutations of input vector
Find and output all permutations of given vector

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Which way to go?
Given an m*n grid, How many ways are there to go from upper left corner to the lower right one? You can only move right...

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Sum my indices
Given inputs M and N (in that order), output an MxN matrix whose entries are equal to the sum of their indices. Example input...

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Convert number from given base to other base
Convert number from given base to other base. Example 400 in base 5, find equivalent number in base 8, it is 144.

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Combination logic
Create an algorithm in MATLAB that calculate the combination for the given positive integers n and k as inputs. When k > n, the ...

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

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Step up
For given input array, output a array with all elements step up by two

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most frequent character
Obtain most frequent character Let s='balaram'; output='a';

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Soccer - TOTO
How many different outcomes are there in a soccer-TOTO with n games? For each game there are three results: win - loss - equa...

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Cofactor
Given a matrix, find the cofactor of the element in 'i'th row and 'j'th column.

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Repeat The Components of Matrix
Repeat The components of a matrix so that the size of the output matrix is double to input matrix and components are repeated ne...

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