解決済み

Find matching parenthesis
One of the most indispensable things about a great text editor for programming is the ability to quickly jump between matching p...

9年以上前

解決済み

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...

9年以上前

解決済み

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...

9年以上前

解決済み

Find all elements less than 0 or greater than 10 and replace them with NaN
Given an input vector x, find all elements of x less than 0 or greater than 10 and replace them with NaN. Example: Input ...

9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]; and ...

9年以上前

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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...

9年以上前

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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...

9年以上前

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Determine if input is odd
Given the input n, return true if n is odd or false if n is even.

9年以上前

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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 ...

9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:...

9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...

9年以上前

解決済み

Minefield Sonar
*Background* In mine-hunting games (e.g. Microsoft Minesweeper), the user is provided with a covered grid that, upon a left c...

9年以上前

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Use of regexp
Given a string, containing several sentences, such as: 'I played piano. John played football. Anita went home. Are you safe?...

9年以上前

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Is the paranthesis sequence balanced ?
Quantum mechanics and computer science are interested in <http://en.wikipedia.org/wiki/Bra%E2%80%93ket_notation bra-kets>. Today...

9年以上前

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Add more zeros
Find code that adds one 0 to each sequence of 0 in a string (composed with only 0 or 1). For example: '1010' -> '100100' ...

9年以上前

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Find the sum of the negative elements under the main diagonal.
Example Input A=[1 2; -3 0] Output -3

9年以上前

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i forgot to use capital I
When referring to yourself you should write "I" (capital) and not "i". So correct the input string x, but be aware that other u...

9年以上前

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Return strings encapsulated by braces
Return all substrings that are contained within braces ({}). For example: str = 'x = rho*x{-1} + (1-rho)*y{+1}'; when...

9年以上前

解決済み

My cat likes strings!!
Create a string of specified length or more. It's that simple!

9年以上前

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Find Adjacency Matrix
Graph is undirected. (s,t) in node pairs. Please, return full storage version of the matrix.(use _full(A)_ ) Input: s...

9年以上前

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Convert array of decimal numbers into binary numbers array.
Convert array of decimal numbers into binary numbers array. Example x = [1 2 3 4 5 6 7 8 ]; re...

9年以上前

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Convert array of decimal numbers into hexadecimal numbers array.
Convert array of decimal numbers into hexadecimal numbers array. Example x =[ 32 33 34 35 36 37 38 ...

9年以上前

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Non trivial identities - transpose
Return x by transposing it.

10年弱前

解決済み

Some tweaks in summation, Can you decode? :)
There are some tweaks in summation that you might observe via test suites Try if you can

10年弱前

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Display negative numbers
Given array,x, display all the negative numbers and display output as y. Example x=[1 -2 3 -4] , output is y=[-2 -4].

10年弱前

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Wrap-around effect
In vector x of length n we define (n+1) position as going back to the first position (so called wrap-around effect). Can you ret...

10年弱前

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Polynomial evaluation
Compute the value of a polynomial of degree n with coeffcients in vector a, at value x. p(x)=a(1)+a(2)x+a(3)x^2+...+a(n+1)x...

10年弱前

解決済み

Remove collinear points in a set of 2D points defining a polygon
Consider a polygon that is obtained by joining a set of 2D points whose coordinates are stored in matrix P=[x,y]. Write a functi...

10年弱前

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Standard Deviation
Find standard deviation of an array.

10年弱前

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Count the numbers
In a array x, count the number of times the number n appears in x. for example: x = [1 2 3 4 3 2 1 2] and n = 2 the answer sh...

10年弱前