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# Jean-Marie Sainthillier

### Skinexigence

3,219 total contributions since 2012

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Solved

find nth even fibonacci number
1st even fibonacci number=2 ; 2nd even fibonacci number=8 ..

25 days ago

Solved

given three inputs (a, b, c) for the equation a*x^2+b*x+c=0; return 1 if the roots are complex (non zero imaginary), and 0 if th...

28 days ago

Solved

The End of the World
given a date -- represent it in the Maya long count system. <https://en.wikipedia.org/wiki/Maya_calendar> <https://maya.nm...

28 days ago

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leap year
find the number of leap years within the given time interval

28 days ago

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Lost days
Given two dates in a particular format, calculate the difference between them.

28 days ago

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Count the days
Count the occurrence of a particular day (e.g. Monday) in a given year.

28 days ago

Solved

Calculate days until Christmas
Provided with inputs year, month, day e.g. 2019,11,12, calculate the number of days until the next Christmas day, i.e. the next ...

3 months ago

Question

Why do I lost negative values in cell
If S={'md' 0 1 2 3 -1} for example with 'md' for missing data and values between -3 and 3 (-3,-2,-1,0,1,2,3). double([S{2:end}]...

3 months ago | 1 answer | 0

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Solved

Game of Nim
The Game of Nim is a famous studied 2 player strategy game. <http://en.wikipedia.org/wiki/Nim> There are 3 heaps, and you...

6 months ago

Solved

Square
square root of x

6 months ago

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Find the mean of a 2-D matrix after excluding elements of specified sub-matrix
You need to find the mean of a 2-D matrix after excluding elements which form an inner sub-matrix. e.g. If the input 2-D matrix ...

6 months ago

Solved

Interpolate scattered data.
Most data was scattered, and there is no gird. There are three data [c] in three different area [x,y]. x=[1 3 4]; y=[1 ...

6 months ago

Solved

Sorting integers by their digits (Level 4)
This is the next step up from <http://www.mathworks.com/matlabcentral/cody/problems/42815-sorting-integers-by-their-digits-level...

6 months ago

Solved

Assignment Problem
Given a matrix where row i corresponds to person i, and column j corresponds to task j and cell (i,j) corresponds to the time ta...

6 months ago

Solved

Next lexicographic - permutation
Find next lexicographic - permutation (permutations as it would occur in a dictionary order). E.g: nextP('ABCD') = ABDC I...

6 months ago

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Determine if input is a valid AHP evaluation matrix
Input is a matrix. Output is a true or false statement (1 or 0). Return true if input is a valid Analytic Hierarchy Process eval...

6 months ago

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Outer product of multiple vectors
In tensor algebra, it is often useful to define a tensor as a product of lower order tensors. Similarly, a multidimensional arra...

6 months ago

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the average value of the elements
Calculate the average value of the elements in the array

6 months ago

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Sort the prime numbers in each row of a 3x3 matrix
Considering a 3x3 matrix A, sort the prime numbers of each row in ascending order. For exemple: input A=[5 8 2 4; ...

6 months ago

Solved

Large Sum (inspired by Project Euler 13)
Your function will be provided an arbitrary number of numbers of arbitrary sizes as a cell array of strings. Some numbers will b...

6 months ago

Solved

Plot Damped Sinusoid
Given two vectors |t| and |y|, make a plot containing a blue ( |b| ) dashed ( |--| ) line of |y| versus |t|. Mark the minimum...

6 months ago

Solved

Calculate a Damped Sinusoid
The equation of a damped sinusoid can be written as |y = A.&#8519;^(-&lambda;t)*cos(2πft)| where |A|, |&lambda;|, and |f| ...

6 months ago

Solved

Calculate the Damerau-Levenshtein distance between two strings.
<http://www.mathworks.co.uk/matlabcentral/cody/problems/2303-compute-hamming-distances-between-each-pair-of-rows-from-two-input-...

6 months ago

Solved

Beauty of Parentheses
Given a string consisting of closed parentheses, form a string array in the following way so that the orders of these parenthese...

6 months ago

Solved

Triangle???
Calculate the circumference of an equilateral triangle with x

6 months ago

Solved

square a number twice with square root of 4/5
square a number twice with square root of 4/5

6 months ago

Solved

How to find the position of an element in a vector without using the find function
Write a function posX=findPosition(x,y) where x is a vector and y is the number that you are searching for.

6 months ago

Solved

SAY 'OHYEAH'
Regardless of input, output the string 'OHYEAH'.

6 months ago

Solved

Convert Fahrenheit to Kelvin
Convert the value f in Fahrenheit to Kelvin

6 months ago

Solved

Check if number is a square number
Test if integer i is a square number. Return logical true if it is.

6 months ago