Problem 498. Find the Kronecker Tensor Product without using KRON

Created by Bruce Raine

Difficulty:Rate

Solve Later
Add To GroupÃ‚

The Kronecker Tensor Product is the result of multiplying all elements of a matrix with each of the elements of another matrix. The result is a large matrix bigger than either input matrix.
If X is m-by-n and Y is p-by-q, then mykron(X,Y) is m*p-by-n*q.
NOTE: n does not need to equal p as with normal matrix multiplication.
EX:
>> a=1:3;
>> b=2:4;
>> mykron(a,b)
ans = 2 3 4 4 6 8 6 9 12

Solve

Solution Stats

157 Solutions
46 Solvers

Last Solution submitted on Nov 17, 2024

Last 200 Solutions

Problem Comments

4 Comments

4 Comments

Show 1 older comment

Bruce Raine on 16 Mar 2012

Thanks, I have made the corrections.

Freddy on 21 Mar 2012

To address the term: "without using KRON", may you please add this (or something similar) to the test suite: % Test for kron usage fid = fopen(which(), 'r'); c = onCleanup(@()fclose(fid)); tline = fgetl(fid); while ischar(tline), if strfind(tline,'kron'), error('Don''t use kron'); end tline = fgetl(fid); end ... This should work fine after you've renamed your function and iserted it in <...>.

Bruce Raine on 8 Apr 2012

Thanks, I applied your suggestion but with some syntactical changes. Code is fully tested now so 'kron' answers disallowed.

Solution Comments

Show comments

ANNOUNCEMENT

Who Deserves Your Praise? Discover the New Contribution Widget!

We are excited to announce another update to our Discussions area: the...

Problem Recent Solvers46

Problem Tags

Community Treasure Hunt

Find the treasures in MATLAB Central and discover how the community can help you!

Start Hunting!

Problem 498. Find the Kronecker Tensor Product without using KRON

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Who Deserves Your Praise? Discover the New Contribution Widget!

Problem Recent Solvers46

Suggested Problems

More from this Author16

Problem Tags

Community Treasure Hunt

Problem 498. Find the Kronecker Tensor Product without using KRON

Solution Stats

Last 200 Solutions

Problem Comments

Solution Comments

Who Deserves Your Praise? Discover the New Contribution Widget!

Problem Recent Solvers46

Suggested Problems

More from this Author16

Problem Tags

Community Treasure Hunt

Players