Problems

1 – 50 of 94

Problem Title Likes Solvers

Problem 1. Times 2 - START HERE

Created by: Cody Team

Tags intro, math, basics

118

37411

Problem 2. Make the vector [1 2 3 4 5 6 7 8 9 10]

Created by: Cody Team

Tags basic, colon, x=1:10

29859

Problem 3. Find the sum of all the numbers of the input vector

Created by: Cody Team

Tags easy, matlab 101, vector

26105

Problem 8. Add two numbers

Created by: Cody Team

Tags matlab 101, siam, basic matlab

23324

Problem 26. Determine if input is odd

Created by: Cody Team

Tags easy, basic matlab, why matlab

17292

Problem 6. Select every other element of a vector

Created by: Cody Team

Tags vectors, indexing, matlab 101

16536

Problem 5. Triangle Numbers

Created by: Cody Team

Tags math, triangle

14428

Problem 17. Find all elements less than 0 or greater than 10 and replace them with NaN

Created by: Cody Team

Tags data cleaning, basic matlab

11709

Problem 4. Make a checkerboard matrix

Created by: Cody Team

Tags matrices, square

140

10866

Problem 19. Swap the first and last columns

Created by: Cody Team

Tags matlab 101, siam, math

10051

Problem 10. Determine whether a vector is monotonically increasing

Created by: Cody Team

Tags vectors, matlab 101

9428

Problem 12. Fibonacci sequence

Created by: Cody Team

Tags sequences, siam, fibonacci

8504

Problem 33. Create times-tables

Created by: Cody Team

Tags matrices

7806

Problem 23. Finding Perfect Squares

Created by: Cody Team

Tags sets, poor_test_suite

7414

Problem 25. Remove any row in which a NaN appears

Created by: Cody Team

Tags matlab 101, siam

6080

Problem 14. Find the numeric mean of the prime numbers in a matrix.

Created by: Cody Team

Tags easy, matrices

6011

Problem 9. Who Has the Most Change?

Created by: Cody Team

Tags indexing, notice the rignt sequence of money!, poor description

5763

Problem 21. Return the 3n+1 sequence for n

Created by: Cody Team

Tags 3n+1, sample

5315

Problem 32. Most nonzero elements in row

Created by: Cody Team

Tags matrices

5212

Problem 20. Summing digits

Created by: Cody Team

Tags strings

4937

Problem 22. Remove the vowels

Created by: Cody Team

Tags regexp, siam

3916

Problem 30. Sort a list of complex numbers based on far they are from the origin.

Created by: Cody Team

Tags sorting, basic matlab

3817

Problem 18. Bullseye Matrix

Created by: Cody Team

Tags matrices

3459

Problem 60. The Goldbach Conjecture

Created by: Cody Team

Tags primes

3333

Problem 39. Which values occur exactly three times?

Created by: Cody Team

Tags search

3331

Problem 16. Return the largest number that is adjacent to a zero

Created by: Cody Team

Tags vectors

3151

Problem 94. Target sorting

Created by: Cody Team

Tags matlab, sorting

2962

Problem 29. Nearest Numbers

Created by: Cody Team

Tags vectors, distance

2749

Problem 13. Remove all the consonants

Created by: Cody Team

Tags regexp, basics

2567

Problem 37. Pascal's Triangle

Created by: Cody Team

Tags combinatorics, math

2534

Problem 15. Find the longest sequence of 1's in a binary sequence.

Created by: Cody Team

Tags diff, strings, regexp

2485

Problem 41. Cell joiner

Created by: Cody Team

Tags matlab, strings

2255

Problem 42. Find the alphabetic word product

Created by: Cody Team

Tags matlab

2012

Problem 27. Pangrams!

Created by: Cody Team

Tags strings

1985

Problem 28. Counting Money

Created by: Cody Team

Tags regexp, strings

1959

Problem 34. Binary numbers

Created by: Cody Team

Tags matlab

1932

Problem 46. Which doors are open?

Created by: Cody Team

Tags matlab, iteration

1797

Problem 73. Replace NaNs with the number that appears to its left in the row.

Created by: Cody Team

Tags matlab

1728

Problem 48. Making change

Created by: Cody Team

Tags money

1671

Problem 74. Balanced number

Created by: Cody Team

Tags matlab

1593

Problem 35. Quote Doubler

Created by: Cody Team

Tags strings, regexp, quotes

1540

Problem 76. De-dupe

Created by: Cody Team

Tags matlab

1528

Problem 62. Elapsed Time

Created by: Cody Team

Tags time

1417

Problem 72. Interpolator

Created by: Cody Team

Tags interpolation

1329

Problem 40. Reverse Run-Length Encoder

Created by: Cody Team

Tags encoding

1325

Problem 51. Find the two most distant points

Created by: Cody Team

Tags distance

1254

Problem 38. Return a list sorted by number of occurrences

Created by: Cody Team

Tags vectors, sorting

1240

Problem 44. Trimming Spaces

Created by: Cody Team

Tags strings, whitespace

1176

Problem 59. Pattern matching

Created by: Cody Team

Tags indexing

1168

Problem 45. Make a Palindrome Number

Created by: Cody Team

Tags strings

1146

1 – 50 of 94

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