Problem 579. Spiral In
Create an m by n matrix filled with sequential integers starting from 1 and arranged in a counterclockwise spiral that hugs the outside border and begins in the upper left corner.
For example:
>> spiralIn(4,5) ans = 1 14 13 12 11 2 15 20 19 10 3 16 17 18 9 4 5 6 7 8
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Ned Gulley
on 11 May 2012
Richard, you can add tags whenever you want. Just click on "Add Tags".
Nicholas Howe
on 17 May 2012
Good suggestion, although not all solutions proposed have been recursive. Thanks!
henry Liu
on 20 Jan 2023
With the process of your coding, you'll find out more and more bugs. This is why I enjoy this problem.
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Matrix Patterns I
- 18 Problems
- 60 Finishers
- Pascal's Matrix
- Spot the rectangle (Part 2)
- Spot the rectangle
- Create Volcano (or Atoll) martix. It is an extension of Bullseye matrix problem.
- Magic is simple (for beginners)
- Create Volcano (or Atoll) martix. It is an extension of Bullseye matrix problem.
- Mirror Image matrix across anti-diagonal
- Special matrix
- Make a logical diamond using GALLERY function
- Magic is simple (for beginners)
- Create a Multiplication table matrix...
- Make a Star Pyramid
- "mirror" matrix
- Twist 'n' Match
- Create a matrix X, where each column is a shifted copy of the vector v
- Symmetric matrix
- Create a patchwork matrix
- Spiral In
- Spot the rectangle (Part 2)
- Spot the rectangle
- Matrix spiral
- Better bullseye matrix
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