Thomas Lichtenegger

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1 – 50 of 412

Problem 273. Recurring Cycle Length (Inspired by Project Euler Problem 26)

Created by: @bmtran (Bryant Tran)

Tags project euler, digits, decimals

2

Solutions

85

Size

2

Solutions

85

Size

Problem 591. Create a patchwork matrix

Created by: Nicholas Howe

Tags matrix assembly

2

Solutions

47

Size

2

Solutions

47

Size

Problem 742. Symmetric matrix

Created by: Aurelien Queffurust

Tags symmetric

1

Solution

25

Size

1

Solution

25

Size

Problem 761. Create a matrix X, where each column is a shifted copy of the vector v

Created by: Julio

Tags matrix

4

Solutions

30

Size

4

Solutions

30

Size

Problem 1053. Create a Multiplication table matrix...

Created by: Pranav

Tags matrix, table

1

Solution

18

Size

1

Solution

18

Size

Problem 1433. Mirror Image matrix across anti-diagonal

Created by: Chintan

Tags diag basics

1

Solution

59

Size

1

Solution

59

Size

Problem 943. "mirror" matrix

Created by: Grzegorz Knor

Tags matrix manipulation, matrix

2

Solutions

23

Size

2

Solutions

23

Size

Problem 985. Make a Star Pyramid

Created by: HITESH TRIVEDI

Tags triangle, pyramid, star

2

Solutions

25

Size

2

Solutions

25

Size

Problem 1325. Special matrix

Created by: Dan

Tags basic matlab, trivial

2

Solutions

31

Size

2

Solutions

31

Size

Problem 514. Spot the rectangle (Part 2)

Created by: Ned Gulley

Tags matrices, 17x17

1

Solution

133

Size

1

Solution

133

Size

Problem 512. Spot the rectangle

Created by: Ned Gulley

Tags matrices, 17x17

1

Solution

47

Size

1

Solution

47

Size

Problem 1463. Pascal's Matrix

Created by: Yaroslav

Tags math, matlab 101, combinatorics

1

Solution

15

Size

1

Solution

15

Size

Problem 42760. Find the gcm of n given values

Created by: Roberto

Tags math, gcm

1

Solution

33

Size

1

Solution

33

Size

Problem 42757. Convert integer to base26 using letters

Created by: Alberto Comin

Tags numbers

1

Solution

36

Size

1

Solution

36

Size

Problem 1510. Number of digits in an integer

Created by: Mohamed B.S.

Tags digits

1

Solution

14

Size

1

Solution

14

Size

Problem 1081. Test if two numbers have the same digits

Created by: @bmtran (Bryant Tran)

Tags plus15

3

Solutions

20

Size

3

Solutions

20

Size

Problem 44306. Is it really a 5?

Created by: goc3

Tags regexp, string, number

3

Solutions

67

Size

3

Solutions

67

Size

Problem 44369. Circle/Pentagon Overlap

Created by: goc3

Tags geometry, circle, radius

1

Solution

27

Size

1

Solution

27

Size

Problem 44363. Is this is a Tic Tac Toe X Win?

Created by: Doug Hull

Tags cody5, noughts and crosses

3

Solutions

34

Size

3

Solutions

34

Size

Problem 44370. Octoberfest festival

Created by: Andriy Kavetsky

Tags fibonacci, cody5

1

Solution

40

Size

1

Solution

40

Size

Problem 44375. Missing five

Created by: Alfonso Nieto-Castanon

Tags cody5

1

Solution

35

Size

1

Solution

35

Size

Problem 44360. Pentagonal Numbers

Created by: goc3

Tags series, number, sequence

1

Solution

69

Size

1

Solution

69

Size

Problem 44358. I Plead the Fifth

Created by: goc3

Tags regexp, strings, string

2

Solutions

29

Size

2

Solutions

29

Size

Problem 44352. The Top 5 Primes

Created by: Peng Liu

Tags cody5

1

Solution

53

Size

1

Solution

53

Size

Problem 44350. Breaking Out of the Matrix

Created by: James

Tags cody5, whoa, windowing

2

Solutions

60

Size

2

Solutions

60

Size

Problem 361. Energy of a photon

Created by: AMITAVA BISWAS

Tags physics, frequency, energy

2

Solutions

14

Size

2

Solutions

14

Size

Problem 1642. BULLSEYE Part 2: Reference Problem 18 BULLSEYE

Created by: Suman Saha

Tags matrix

1

Solution

46

Size

1

Solution

46

Size

Problem 2177. Rainbow matrix

Created by: Simon

Tags matrix

1

Solution

51

Size

1

Solution

51

Size

Problem 2336. Calendar Matrix

Created by: Ned Gulley

Tags date, calendar

3

Solutions

68

Size

3

Solutions

68

Size

Problem 8073. Matrix Construction I

Created by: Abdullah Caliskan

Tags matrix, basic matlab

1

Solution

34

Size

1

Solution

34

Size

Problem 2813. Create a block diagonal matrix

Created by: Mattias

Tags matlab, matrix, block matrix

2

Solutions

67

Size

2

Solutions

67

Size

Problem 2694. The Matrix Construction

Created by: Abdullah Caliskan

Tags matrix

1

Solution

47

Size

1

Solution

47

Size

Problem 2365. Generate this matrix

Created by: rifat

Tags matrix, diag

1

Solution

42

Size

1

Solution

42

Size

Problem 1845. Pascal's pyramid

Created by: Tim

Tags pyramid, pascal

2

Solutions

19

Size

2

Solutions

19

Size

Problem 1704. Triangular matrices in 3D array

Created by: Matthew Eicholtz

Tags matlab, logical indexing, multidimensional arrays

1

Solution

29

Size

1

Solution

29

Size

Problem 2064. Generate this matrix

Created by: Sabarinathan Vadivelu

Tags computation

1

Solution

22

Size

1

Solution

22

Size

Problem 2695. Toeplitz Matrix

Created by: VIVEK RUHELA

Tags toeplitz

1

Solution

71

Size

1

Solution

71

Size

Problem 1636. ZigZag matrix with reflected format

Created by: Suman Saha

Tags matrix

5

Solutions

25

Size

5

Solutions

25

Size

Problem 2455. Diagonal of a Spiral Matrix

Created by: rifat

Tags spiral, diag

2

Solutions

43

Size

2

Solutions

43

Size

Problem 2342. Numbers spiral diagonals (Part 2)

Created by: Jean-Marie Sainthillier

Tags primes, project euler, spiral

1

Solution

118

Size

1

Solution

118

Size

Problem 2340. Numbers spiral diagonals (Part 1)

Created by: Jean-Marie Sainthillier

Tags primes, project euler, spiral

1

Solution

46

Size

1

Solution

46

Size

Problem 1394. Prime Ladders

Created by: Ned Gulley

Tags primes

1

Solution

186

Size

1

Solution

186

Size

Problem 44403. Goldbach's marginal conjecture - Write integer as sum of three primes

Created by: yurenchu

Tags primes, goldbach conjecture

2

Solutions

55

Size

2

Solutions

55

Size

Problem 55765. Adding Inset Plots

Created by: Renee Coetsee

Tags plot, axes

5

Solutions

57

Size

5

Solutions

57

Size

Problem 1281. Fermat's Last Theorem - Fermat's conjecture

Created by: Marco Castelli

Tags matlab, find, sum

1

Solution

35

Size

1

Solution

35

Size

Problem 1082. Lychrel Number Test (Inspired by Project Euler Problem 55)

Created by: @bmtran (Bryant Tran)

Tags projecteuler, plus15

1

Solution

42

Size

1

Solution

42

Size

Problem 1407. Is it an Armstrong number?

Created by: Harish Maradana

Tags armstrong no

1

Solution

24

Size

1

Solution

24

Size

Problem 1298. P-smooth numbers

Created by: Richard Zapor

Tags primes, find, mod

1

Solution

24

Size

1

Solution

24

Size

Problem 1162. Happy 2013...

Created by: James

Tags new year, different digits, 2013

2

Solutions

26

Size

2

Solutions

26

Size

Problem 1477. Champernowne Constant

Created by: G K

Tags math

2

Solutions

44

Size

2

Solutions

44

Size

1 – 50 of 412