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Carmichael Number

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List the good primes

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Determine whether a number is a prime self number

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Determine aquifer properties: unsteady pump test in a confined aquifer

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Determine whether a prime is Pythagorean

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Solve the arithmetic differential equation D(n) = n

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Binary Neighbourhood
Given a natural number reorder its binary form to create another number, closest to the given one. Examples: * 1 gives 2, ...

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Digital Neighbourhood
Given a natural number reorder its digits to create another number, closest to the given one. Examples: * 123 gives 132, ...

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Evened up (or not)
You will be provided with an array or matrix that contains various numbers, in addition to an evening variable, e, set to 1 or 0...

5 years 前

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Find the sines of an isosceles triangle when given its area and height
Find the sines of an isosceles triangle when given its area and height. For example, when A=60 and h=5, the result is [0.3752...

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Original coordinate of the min element of a subset of elements

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Compute the largest number possible with the Brussels choice

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Determine whether a square can be drawn on a grid of dots

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Construct dimensionless parameters
*Summary* Write a function to construct dimensionless parameters from a list of variables, a matrix indicating their dimensi...

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Center of Mass(es) in 3D Space

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Double the next and alternate sign

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Play PRIMEGAME

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Lateral Area of a Right Rectangular Pyramid

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Polygon in a unit circle

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number play

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Extract Built In Functions and Toolbox Functions from String or Function Handle
Find the Built-In functions and Toolbox functions in either a string or a function handle. Generate a string of alphabetized ...

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Count letters occurence in text, specific to words with a given length.
Build a function with two input arguments: a string and a word length (number of letters), that outputs a vector of counts of th...

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Calculate the Surface Area of an Ellipsoid

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List all of the integer points in a bounded feasble region

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Test the generalized Legendre conjecture

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List the dihedral primes