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matrix rows and columns

5 years ago

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reverse the order and combine a matrix

5 years ago

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Perfect number

5 years ago

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"Bubblegum, Bubblegum, in a dish; How many pieces do you wish?"
The child's game "bubblegum, bubblegum, in a dish; how many pieces do you wish?" is a way of eliminating players until a single ...

5 years ago

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Find Logic 32

5 years ago

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Find Logic 24

5 years ago

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Find Logic 22

5 years ago

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Solve the equation. Find X.

5 years ago

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Area of Ellipse

5 years ago

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Dot Product

5 years ago

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Inhomogenous Depth Scale Interpolation
I recently came across a dataset for physical ocean parameters such as temperature and salinity that provided data in the form o...

5 years ago

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Convert a cell-array of values to MATLAB source code
The MATLAB interpreter loads your code and executes it using the Read-Evaluate-Print-Loop (see <http://en.wikipedia.org/wiki/REP...

5 years ago

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All Humans are Created Equal - Pareto Equality
One way or the other two sets of identical types can come out ahead of the other by idea of Pareto equality. Pareto equality b...

5 years ago

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Reduce - Map-Reduce
Write reduce function, that takes arguments and constantly folds results into next call argument, finally returning a value; ...

5 years ago

Solved

Besson Ranks
Return Besson Ranks. You can look at <https://www.sciencedirect.com/science/article/pii/0895717789903671 this article.> Besso...

5 years ago

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Find R*Rp-N*Np=1 given gcd(R,N)=1

5 years ago

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Montgomery Reduction Algorithm (REDC)

5 years ago

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Grouped Frequency Distributions

5 years ago

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Compression: Encode and Decode
This Challenge is to compress an array created by randi(2^32-1,1000) and then decompress your data file. The first call will ...

5 years ago

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String Find with Wildcards of a Cell array
Given a cell array of strings and a search string with single character (?) or multiple character (*) wildness return the indice...

5 years ago

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Find the standard deviation of an array

5 years ago

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Hamming Weight - Size Scoring
The Hamming Weight, <http://en.wikipedia.org/wiki/Hamming_weight wiki Hamming Weight>, in its most simple form is the number of ...

5 years ago

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SLP Calculation
The SLP Calculation Challenge is to implement SLP sequences and output the result as a string. SLP, Straight Line Program, creat...

5 years ago

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Falling on the Moon.

5 years ago

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Vogel-Dobbener entropy
*Vogel-Dobbener entropy* is a measure of dispersion for ordinal variables. Given an ordered list of distinct observations u_...

5 years ago

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Grandpa's telescope
Two grandkids Dorothy and Benjamin are sharing a telescope made by their grandpa, who used an old lens of spectacles as the obje...

5 years ago

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ismember: Enhanced Time Performance for 'rows' - Speed Scoring (90% savings)
The Challenge is to perform very fast the 'ismember' function for a long and wide array. The data is small integer representi...

5 years ago

Solved

ismember: Enhanced Performance for 'rows' and width - Speed Scoring (66% savings)
The Challenge is to perform very fast the 'ismember' function for a long and wide array. The width of the array is expanded fro...

5 years ago

Solved

Multiply to the limit?
If y = 4*x*x/pi/pi then what is the ultimate limiting result of (1+y/1/1)(1+y/3/3)(1+y/5/5)(1+y/7/7)... ... within 1000*eps?

5 years ago

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arrayfun bomb

5 years ago