Cody

# Problem 2851. Find the rank of a matrix

Solution 1817132

Submitted on 16 May 2019 by H00 Bryan Daniels
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### Test Suite

Test Status Code Input and Output
1   Pass
x = 1; y_correct = 1; assert(isequal(ranx(x),y_correct))

x1 = 1 y1 = logical 1 y = 1

2   Pass
x = [1 0;0 0]; y_correct = 1; assert(isequal(ranx(x),y_correct))

x1 = 1 0 0 0 y1 = 2×1 logical array 1 0 y = 1

3   Pass
x = [1 1;1 0]; y_correct = 2; assert(isequal(ranx(x),y_correct))

x1 = 1 0 0 1 y1 = 2×1 logical array 1 1 y = 2

4   Pass
x = [1 0;0 1]; y_correct = 2; assert(isequal(ranx(x),y_correct))

x1 = 1 0 0 1 y1 = 2×1 logical array 1 1 y = 2

5   Pass
x = [1 0 0;1 0 0;1 0 0]; y_correct = 1; assert(isequal(ranx(x),y_correct))

x1 = 1 0 0 0 0 0 0 0 0 y1 = 3×1 logical array 1 0 0 y = 1

6   Pass
filetext = fileread('ranx.m'); assert(isempty(strfind(filetext, 'rank')),'rank forbidden')

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