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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...

más de 2 años ago

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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...

más de 2 años ago

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Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock. Tick. Tock.
Submit your answer to this problem a multiple of 5 seconds after the hour. Your answer is irrelevant; the only thing that matte...

casi 3 años ago

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Pernicious Anniversary Problem
Since Cody is 5 years old, it's pernicious. A <http://rosettacode.org/wiki/Pernicious_numbers Pernicious number> is an integer w...

casi 3 años ago

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Energy of a photon
*&#9883 &#9762 &#9883 &#9762 &#9883 &#9762 &#9883* Given the frequency F of a photon in giga hertz. Find energy E of this...

casi 3 años ago

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How to subtract?
*&plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn &plusmn* * Imagine you need to subtract one...

casi 3 años ago

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How close to a hole
Suppose you have a description of good places (ones) and bad places (zeros). You want to know your distance from a bad place (in...

casi 3 años ago

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Find the same and successive values in a vector
Find the same and successive values in a vector. For example: Input x = [ 1 0 0 1 1 1 1 0 1 1 1 0 0 0 1 ] Start and end...

casi 3 años ago

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Find Elements in Range
Based on a question on <http://www.mathworks.com/matlabcentral/answers/ MATLAB Answers>. Find all the elements of a vector wh...

casi 3 años ago

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longest sequence of nans
In an array return the length of longest sequence of nans for each column. x = [ 2 3 1 2 5 6; nan nan 5 n...

casi 3 años ago

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Solve the 2-norm Regularization Problem
In data fitting, regularization is a technique to stabilize an ill-posed problem. <https://en.wikipedia.org/wiki/Tikhonov_regula...

casi 3 años ago

Problem

Solve the 2-norm Regularization Problem
In data fitting, regularization is a technique to stabilize an ill-posed problem. <https://en.wikipedia.org/wiki/Tikhonov_regula...

casi 3 años ago | 0 | 4 solvers

Question

Please Explain the new File Exchange Versioning Number
The new File Exchange versioning uses four numbers. Please explain what each number represents. For example, |2.1.4.2|.

casi 3 años ago | 1 answer | 0

### 1

Submitted

Matlab Style Guidelines Cheat Sheet
One page summary of the "MATLAB Programming Style Guidelines"

Question

S-Function Backward Compatibility
Can an S-function compiled in 2018a be used in a model in 2013b? Please cite the documentation if you know the keywords to fi...

alrededor de 3 años ago | 1 answer | 0

### 1

Question

Reformulate a Constrained Linear Least Square Problem
I have a problem of the form <</matlabcentral/answers/uploaded_files/119361/Clipboard01.png>> Normally you solve it like t...

alrededor de 3 años ago | 2 answers | 0

### 2

Solved

Split array into pieces according to corresponding array
An array x of length n has values 1...m with each value appearing at least once. The values are sorted (n>=m). A second...

alrededor de 3 años ago

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Neither minima nor maxima
Input v is a vector. Return all the elements of v which are not a local minimum or maximum. Example: v = [1 2 3 4 5] Ou...

alrededor de 3 años ago

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Find indices of diagonal elements
Given a matrix A and a diagonal index d (where 0 indicates the main diagonal and off-diagonals are identified by positive and n...

alrededor de 3 años ago

Solved

Elements with highest local average
Input v is a row vector such that length(v)>3. Consider a sliding window of length 3 that is used to calculate the local average...

alrededor de 3 años ago

Solved

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...

alrededor de 3 años ago

Solved

Decimation - Optimized for speed
This problem is similar to http://www.mathworks.com/matlabcentral/cody/problems/1092-decimation, only this time the score will b...

alrededor de 3 años ago

Solved

Implement a bubble sort technique and output the number of swaps required
A bubble sort technique compares adjacent items and swaps them if they are in the wrong order. This is done recursively until al...

alrededor de 3 años ago

Solved

Reference Index Number
Given a reference set R of elements (each unique but identical in type), and a list V of elements drawn from the set R, possibly...

alrededor de 3 años ago

Solved

Oh Zero Zero Zero!!!
Hello all, So you have to find the largest section of zeros in a vector and then find the length of those zeros and there start...

alrededor de 3 años ago

Solved

Find last zero for each column
Given a numeric array of arbitrary size, return the row index of the last zero for each column. If a column contains all nonzero...

alrededor de 3 años ago

Submitted

Persistent Data for Lookup Tables in Simulink
How to speed up Simulink models that use large lookup tables.

Submitted

Bessel Zero Solver
Finds the zeros of besselj and bessely in an ordered fashion. No zeros are missed.

Question

Bug Tracker for Simulation Models
I am looking at tracking bugs in simulation models and m code. Is there a bug tracker that you would recommend for use with MATL...

alrededor de 3 años ago | 1 answer | 0