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Cody and Trendy release notes
Last week we made updates to both Trendy and Cody. My post today is a quick overview of some of the new features. Cody In...
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Cody Hits Two Milestones
We’ve had a few exciting weeks here on MATLAB Central! A month ago we introduced a new blog, Cleve’s Corner, which is...
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Set the array elements whose value is 13 to 0
Input A either an array or a vector (which can be empty) Output B will be the same size as A . All elements of A equal to 13...
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The Master Speaks: An Interview with Cody Champion @bmtran
Bryant Tran, better known to the Cody-playing world as @bmtran, has been the leading player on Cody since the week it...
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Multiply 2 numbers
Very easy, you just have to multiply 2 numbers but you cannot use the following signs (*, /, - ,^) ,mtimes , times, cross, pro...
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Twist 'n' Match
Given n and m, construct an n-by-n matrix a such that a, when rotated 90 degrees and compared with itself, matches itself in exa...
대략 14년 전 | 9 | 솔버 수: 86
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Joining Ranges
You are given a n-by-2 matrix. Each row represents a numeric range, e.g. x = [0 5; 10 3; 20 15; 16 19; 25 25] contains...
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New Features In MATLAB Answers
We’ve just released a long list of new features in MATLAB Answers. Here’s a rundown of what’s new and what’s...
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Matrix with different incremental runs
Given a vector of positive integers a = [ 3 2 4 ]; create the matrix where the *i* th column contains the vector *1:a(i)...
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Project Euler: Problem 6, Natural numbers, squares and sums.
The sum of the squares of the first ten natural numbers is, 1^2 + 2^2 + ... + 10^2 = 385 The square of the sum of the first ...
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Multipoint data gathering in Trendy
When we launched Trendy, you could only grab one data point per trend. One of our very first plots, which was created as...
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June MATLAB Community Updates
In today’s post, I thought I would share fun news with you about our MATLAB community plus one tip about Trendy from a...
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Make a run-length companion vector
Given a vector x, return a vector r that indicates the run length of any value in x. Each element in r shows how many times the ...
대략 14년 전 | 9 | 솔버 수: 662
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Spot the outlier
All points except for one lie on a line. Which one is the outlier? Example: You are given a list of x-y pairs in a column ...
대략 14년 전 | 15 | 솔버 수: 475
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Find a subset that divides the vector into equal halves
Given a vector x, return the indices to elements that will sum to exactly half of the sum of all elements. Example: Inpu...
대략 14년 전 | 14 | 솔버 수: 402
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How long is the longest prime diagonal?
Stanislaw Ulam once observed that if the counting numbers are <http://en.wikipedia.org/wiki/Ulam_spiral arranged in a spiral>, t...
대략 14년 전 | 14 | 솔버 수: 412
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Find the biggest empty box
You are given a matrix that contains only ones and zeros. Think of the ones as columns in an otherwise empty floor plan. You wan...
대략 14년 전 | 23 | 솔버 수: 505
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Symmetric matrix
You must create a n-by-n *symmetric* matrix such that A(row,col) = row/col for col >= row. Example if n =3 : output is : ...
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MATLAB Central Release Notes – May 2012
Here is a quick list of recent MATLAB Central updates you might be interested in checking out: MATLAB Answers OR search...
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QWERTY Shift Encoder
Encode a string using the QWERTY shift code. This code is where you touch type but are offset by one character to the right. ...
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Reverse the Words (not letters) of a String
*Description* Change the words of a string such that the words appear in reverse order. You may assume that the string is a n...
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Make a run-length companion vector
Given a vector x, return a vector r that indicates the run length of any value in x. Each element in r shows how many times the ...
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Remove the two elements next to NaN value
The aim is to *remove the two elements next to NaN values* inside a vector. For example: x = [6 10 5 8 9 NaN 23 9 7 3 21 ...
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Reindex a vector
You are given two vectors of equal length. Vector N has numeric values (no Inf or NaN) while vector IDX has integers. Place th...
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Longest run of consecutive numbers
Given a vector a, find the number(s) that is/are repeated consecutively most often. For example, if you have a = [1 2 2 2 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 ...
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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.
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Put two time series onto the same time basis
Use interpolation to align two time series onto the same time vector. This is a problem that comes up in <http://www.mathwork...
대략 14년 전 | 6 | 솔버 수: 356
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Put two time series onto the same time basis
Use interpolation to align two time series onto the same time vector. This is a problem that comes up in <http://www.mathwork...
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Return the first and last character of a string
Return the first and last character of a string, concatenated together. If there is only one character in the string, the functi...
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