Cody

Problem 498. Find the Kronecker Tensor Product without using KRON

Solution 62214

Submitted on 16 Mar 2012 by David Young
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.
Solve This Problem View on Solution Map

Test Suite

Test Status Code Input and Output
1   Pass
% test for 'KRON' usage fid = fopen(which('mykron'),'r'); c=onCleanup(@()fclose(fid)); tline=fgetl(fid); while ischar(tline) if (strfind(tline,'=kron')>0), error('Don''t use kron'); end if (strfind(tline,' kron')>0), error('Don''t use kron'); end if (strfind(tline,'+kron')>0)|(strfind(tline,'*kron')>0), error('Don''t use kron'); end if (strfind(tline,'-kron')>0), error('Don''t use kron'); end tline = fgetl(fid) end;

tline = z = reshape(permute(reshape(y(:) * x(:).', [size(y) size(x)]), [1 3 2 4]), size(x,1)*size(y,1), []); tline = end tline = '' tline = %This code written by profile_id 415894 tline = -1

2   Pass
%% test 1 x =1:3; y =2:4; y_correct = [2 3 4 4 6 8 6 9 12]; assert(isequal(mykron(x,y),y_correct))

3   Pass
%% test 2 x = randi(10,3,3); y = 2:4; z_correct = kron(x,y); assert(isequal(mykron(x,y),z_correct))

Suggested Problems

More from this Author16

Community Treasure Hunt

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

Start Hunting!