# Christian Schröder

Actif depuis 2019

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Really enjoying MATLAB!

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ICFP2024 005: Lambdaman 1, 2, 3
The ICFP2024 contest was held June29 thru July 1. The contest consisted of five parts: ICFP Language, Lambdaman maze, Starship f...

8 jours il y a

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ICFP2024 006: Lambda 21 - 3D
The ICFP2024 contest was held June29 thru July 1. The contest consisted of five parts: ICFP Language, Lambdaman maze, Starship f...

9 jours il y a

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Complete a 2nd order difference sequence
In Cody Problem 59791 ChrisR asks us to find the integer that completes a randomly sorted geometric sequence with one missing el...

9 jours il y a

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ICFP2024 004: Lambdaman 10
The ICFP2024 contest was held June29 thru July 1. The contest consisted of five parts: ICFP Language, Lambdaman maze, Starship f...

10 jours il y a

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ICFP2024 003: Lambdaman 5
The ICFP2024 contest was held June 29 thru July 1. The contest consisted of five parts: ICFP Language, Lambdaman maze, Starship ...

10 jours il y a

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ICFP2024 002: Lambdaman 9
The ICFP2024 contest was held June29 thru July 1. The contest consisted of five parts: ICFP Language, Lambdaman maze, Starship f...

11 jours il y a

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ICFP2024 001: Lambdaman 6
The ICFP2024 contest was held June29 thru July 1. The contest consisted of five parts: ICFP Language, Lambdaman maze, Starship f...

12 jours il y a

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List primes of the form xy+z
Consider three consecutive integers , , and . When is the number prime? For example, if or , then the results are 17 and 37, ...

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Perimeter of a Koch snowflake
A Koch snowflake is an iteratively generated (fractal) shape built out of successively smaller equilateral triangles by followin...

17 jours il y a

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Find polygonal numbers that are Blum integers
A polygonal number is the number of dots arranged in the shape of a regular polygon. For example, 15 is a triangular number beca...

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Given a Polyshape_01 (ps) Return its Perimeter, Area, and Centroid.
Return the perimeter (P) of a polyshape object, which is the sum of the lengths of its boundaries. Return the total area (A) of...

24 jours il y a

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Jigsaw 002: Intro 2x2 square. Local Cody images
This challenge is to re-assemble camerman.tif and other grayscale images from four 128x128 pieces into a 256x256 image. The prop...

24 jours il y a

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Determine whether a number is a Blum integer
A Blum integer is a semiprime—that is, the product of two distinct primes—whose factors have the form for some integer . The nu...

26 jours il y a

Question

Output of irf() for VAR models when estimation data is in a matrix or a timetable
Hello, I'm estimating a K-dimensional VAR model and looking at IRFs for structural (orthogonalized shocks) using the Econometri...

environ un mois il y a | 1 réponse | 0

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Rotate matrix 60 degrees
Given a 2*m-1 by 4*m-3 matrix in which certain elements form a hexagon of side length m, rotate the hexagon 60 degrees countercl...

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Compute the number of squares a knight can reach after n moves
Several Cody problems involve knights from chess. They have asked players to find a knight’s tour in a matrix (CP 96), determine...

environ un mois il y a

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Jigsaw 001: Intro 2x2 square. Pieces 128x128
This challenge is to re-assemble camerman.tif in grayscale from four 128x128 pieces into a 256x256 image. The pointer layou...

environ un mois il y a

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Write a MATLAB function that takes a positive integer ( n ) as input and returns the sum of all the even numbers from 1 to ( n ).
Write a MATLAB function that takes a positive integer ( n ) as input and returns the sum of all the even numbers from 1 to ( n )...

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Compute a sum of Ramanujan
Srinivasa Ramanujan defined the following function: Write a function to compute for various values of . See also Cody Proble...

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Find jumping medalists

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Compute Khinchin's constant
Khinchin's constant K_0 = 2.684542001... (also written "Khintchine's constant") has the amazing property that it is the limiting...

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Compute the nth Pythagorean prime
Pythagorean primes have the form p = 4n+1, where n is an integer, and they can be written as the sum of squares of two integers....

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Property dispute!
Two neighbors have rectangular plots of land A and B. The surveyors give you the coordinates of each. If they overlap, there is ...

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Implement the signum function
The signum function is a common mathematical function, which has the following definition : If x => 0, its value is 1, if x < 0...

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Output the Montgomery Form of the Input Matrix

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Pronounce digits
Given a number num, select the first d decimal places and pronounce the digits (in English). The function returns the pronunciat...

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Compute Farey sequences
Problem statement The Farey sequence of order consists of fractions between 0 and 1 expressed in reduced form in increasing or...

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ICFP 2024 Programming Contest June 28 thru July 1
This is to announce the annual ICFP programming contest for 2024. The ICFP 2024 homepage link is ICFP 2024 . Registration will...

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Compute a sum
Write a function to compute the following sum Although a solution is available for general values of the coefficients, the co...

environ un mois il y a

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Generate a point cloud on an equilateral triangle 2
The input is the iteration parameter H. The output is a point cloud W involving N points. W is N uniformly distributed points ...

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