Given an input element x, and the dimensions, (m, n) return a matrix of size m x n filled with element x. This must be done in less than half the time that repmat(x, m, n) takes. This is the sequel to http://www.mathworks.com/matlabcentral/cody/problems/1237-it-s-race-time-write-a-faster-function-than-the-test-suite-call-of-unique.
Example: Input: repl_mat(2, 2, 5) Output: [2, 2, 2, 2, 2; 2, 2, 2, 2, 2];
Solution Stats
Problem Comments
2 Comments
Solution Comments
Show comments
Loading...
Problem Recent Solvers23
Suggested Problems
-
1750 Solvers
-
176 Solvers
-
1794 Solvers
-
How many monitors are connected ?
160 Solvers
-
701 Solvers
More from this Author7
Problem Tags
Community Treasure Hunt
Find the treasures in MATLAB Central and discover how the community can help you!
Start Hunting!
This doesn't seem to be possible anymore: http://stackoverflow.com/questions/28722723/matlab-bsxfun-no-longer-faster-than-repmat. Any chance of updating the problem with looser time tolerances?
This problem is meanless!
The solutions passed are not always fast than repmat, or just cheat(ex. using "tic")