Jean-Marie Sainthillier

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Data types in TABLE
I create a TABLE with different data types. For example : sz = [1 6]; vartypes = ["string" "categorical" "categorical" "cate...

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The sliding puzzle: 15
If you are unfamiliar with the sliding puzzle, enter the command fifteen in your MATLAB command window (or search online, of cou...

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Find nearest prime number less than input number
Find nearest prime number less than input number. For example: if the input number is 125, then the nearest prime number whi...

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Wordle
Wordle is an english game where you need to guess a 5 letter word. For each guess you'll receive a feedback for the placement of...

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Pseudo-vampire number
refer to <https://en.wikipedia.org/wiki/Vampire_number> Given a number x, determine whether it is a pseudo-vampire number. A p...

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Compute the nth term from the Sieve of Flavius Josephus

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Characterize the final state of another digit inventory sequence

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Characterize the final state of the digit inventory sequence

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Find the nth term in the digit inventory sequence

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Deduce the pattern behind the sequence

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Find terms in the Connell sequence

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Generate a list of composite numbers

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Compute the harmonic numbers
The nth <https://mathworld.wolfram.com/HarmonicNumber.html harmonic number> is defined as the sum of the reciprocals of the inte...

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Dot notation and curly braces with TABLE
I don't understand clearly the difference between T.(expression) and T{:,expression} notation. For example : load patients d...

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Problem with direct calculation on table with std and "omitnan"
Since R2023a, it is possible to perform calculations directly on tables (and timetables) without extracting their data by indexi...

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expand intervals vol.3
This is the next problem after <http://www.mathworks.co.uk/matlabcentral/cody/problems/2528 2528> and <http://www.mathworks.co.u...

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Interpolated Value Between Two Points
Given two points, and , a new location x, and a method "linear" or "cubic", return the value of a linear or cubic interpolant t...

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Where the Four Corners Am I? (Vectorized)
NOTE: this problem is intended to build on problem #55960 ("Where the Four Corners Am I?"). You may wish to solve that problem f...

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Where the Four Corners Am I?
The "Four Corners" region of the US is where Colorado, Utah, Arizona, and New Mexico all meet - the only place where four states...

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Calculate Angle From Axis
Given coordinates x and y, an axis ("X" or "Y"), and a direction ("cw" or "ccw", meaning clockwise and counterclockwise, respect...

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Taylor Series
You can use a Taylor series to approximate common functions. The Taylor series for sin(x) is Using only the first several te...

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Estimating Euler's (Oi-ler-z) Number
Euler's number is an irrational constant given by Starting with x=0, count the number of times you can add a uniformly distrib...

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Generate Pascal's Triangle Matrix
Pascal's triangle is an arrangement of numbers where each value is the sum of the values adjacent to it in the previous row: ...

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Next Tribonacci Number
The "Tribonacci" sequence is an extension of the idea of the Fibonacci sequence: That is, each new term is the sum of the thr...

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Generate Tribonacci Sequence
The "Tribonacci" sequence is an extension of the idea of the Fibonacci sequence: That is, each new term is the sum of the thr...

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Dartboard Average II
A dartboard arranges the numbers 1 to 20 such that each value is typically flanked by quite different values - for example, 20 i...

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Determine if vector has any zeroes
Return 1 if vector has atleast 1 zero, else return 0

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A Binary Search
One way to locate a target value in a sorted array, is to use a binary search algorithm. Here, you test if the midpoint in the a...

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Create block matrix of integers (j+k-1) - Part II
Given m, n, p, and q, create an m-by-n matrix made up of submatrices, each sized p-by-q (if possible - the last row and column o...

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Triangle Coordinates
Given a natural number n, return two -element vectors, x and y, containing the coordinates of a triangular arrangement of points...

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Jean-Marie Sainthillier

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