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Tim


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1,567 total contributions since 2012

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Dots in a Diamond
Return how many <http://en.wikipedia.org/wiki/Diamond_cubic Diamond Cubic> lattice grid points there are inside a 3D sphere of r...

2 days ago

Solved


Identify eban numbers

3 days ago

Solved


Pairwise Euclidean Distance
Given two matrices A,B of dimensions NxK and NxL respectively, calculate the pairwise euclidean distance of all vectors (columns...

3 days ago

Solved


Vector parallel to plane?
Given the coefficients of the equation which defines a plane as follows: ax+by+cz=d, return a boolean indicating whether the 2n...

3 days ago

Solved


Points on a circle.
This problem is related to <url=http://www.mathworks.com/matlabcentral/cody/problems/1283-points-on-a-sphere>Problem 1283, Point...

3 days ago

Solved


Convert to Binary Coded Decimal
Convert from decimal representation to <http://en.wikipedia.org/wiki/Binary-coded_decimal Binary Code Decimal> (or BCD) represen...

4 days ago

Solved


Find out the Gray Code for a Given Binary Number
Find out <http://en.wikipedia.org/wiki/Gray_code Gray Code> for a given binary number Example Binary input 1000 Gray ...

4 days ago

Solved


Compute expulsions from the Kimberling shuffle

5 days ago

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Upper case and lower case!

6 days ago

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Carmichael Number

10 days ago

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List the good primes

10 days ago

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Determine whether a number is a prime self number

12 days ago

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Determine aquifer properties: unsteady pump test in a confined aquifer

12 days ago

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Determine whether a prime is Pythagorean

13 days ago

Solved


Solve the arithmetic differential equation D(n) = n

15 days ago

Solved


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

16 days ago

Solved


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

16 days ago

Solved


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...

16 days ago

Solved


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...

16 days ago

Solved


Original coordinate of the min element of a subset of elements

19 days ago

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Compute the largest number possible with the Brussels choice

23 days ago

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

23 days ago

Solved


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

24 days ago

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Center of Mass(es) in 3D Space

25 days ago

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Double the next and alternate sign

25 days ago

Solved


Play PRIMEGAME

29 days ago

Solved


Lateral Area of a Right Rectangular Pyramid

1 month ago

Solved


Polygon in a unit circle

1 month ago

Solved


number play

1 month ago

Solved


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 ...

1 month ago

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