Cody

# Problem 792. Set some matrix elements to zero

Solution 3182231

Submitted on 12 Oct 2020 by Roman Kovalevskiy
This solution is locked. To view this solution, you need to provide a solution of the same size or smaller.

### Test Suite

Test Status Code Input and Output
1   Pass
x = [1 2 3 4 5 5 6 5 7 9 8 3]; y_correct = [0 0 0 4 0 0 6 0 0 9 0 0]; assert(isequal(your_fcn_name(x),y_correct))

M = 4 6 9 x = 0 0 0 4 0 0 6 0 0 9 0 0 y = 0 0 0 4 0 0 6 6 0 9 9 9 y = 0 0 0 4 0 0 6 0 0 9 0 0 y = 0 0 0 4 0 0 6 0 0 9 0 0

2   Pass
x = magic(4); y_correct = [16 0 0 0 0 11 0 0 0 0 0 12 0 0 15 0]; assert(isequal(your_fcn_name(x),y_correct))

M = 16 11 12 15 x = 16 0 0 0 0 11 0 0 0 0 0 12 0 0 15 0 y = 16 16 16 16 0 11 11 11 0 0 0 12 0 0 15 15 y = 16 0 0 0 0 11 0 0 0 0 0 12 0 0 15 0 y = 16 0 0 0 0 11 0 0 0 0 0 12 0 0 15 0

3   Pass
x = pi; y_correct = pi; assert(isequal(your_fcn_name(x),y_correct))

M = 3.1416 x = 3.1416 y = 3.1416 y = 3.1416 y = 3.1416

4   Pass
x = 0; y_correct = 0; assert(isequal(your_fcn_name(x),y_correct))

M = 0 x = 0 y = 0 y = 0 y = 0

5   Pass
x = toeplitz(1:5); y_correct = [ 0 0 0 0 5 0 0 0 0 4 3 0 0 0 0 4 0 0 0 0 5 0 0 0 0]; assert(isequal(your_fcn_name(x),y_correct))

M = 5 4 3 4 5 x = 0 0 0 0 5 0 0 0 0 4 3 0 0 0 3 4 0 0 0 0 5 0 0 0 0 y = 0 0 0 0 5 0 0 0 0 4 3 3 3 3 6 4 4 4 4 4 5 5 5 5 5 y = 0 0 0 0 5 0 0 0 0 4 3 0 0 0 6 4 0 0 0 0 5 0 0 0 0 y = 0 0 0 0 5 0 0 0 0 4 3 0 0 0 0 4 0 0 0 0 5 0 0 0 0

6   Pass
x = ones(5); y_correct = [ 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0]; assert(isequal(your_fcn_name(x),y_correct))

M = 1 1 1 1 1 x = 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 1 y = 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 y = 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 1 2 3 4 5 y = 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0 1 0 0 0 0

7   Pass
x =nchoosek(7:9,3); y_correct =[ 0 0 9]; assert(isequal(your_fcn_name(x),y_correct))

M = 9 x = 0 0 9 y = 0 0 9 y = 0 0 9 y = 0 0 9

8   Pass
x =nchoosek(4:9,2); y_correct = [ 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 0 9 0 9]; assert(isequal(your_fcn_name(x),y_correct))

M = 5 6 7 8 9 6 7 8 9 7 8 9 8 9 9 x = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 0 9 0 9 y = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 0 9 0 9 y = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 0 9 0 9 y = 0 5 0 6 0 7 0 8 0 9 0 6 0 7 0 8 0 9 0 7 0 8 0 9 0 8 0 9 0 9

### Community Treasure Hunt

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

Start Hunting!