Cody

# Problem 2851. Find the rank of a matrix

Solution 1979836

Submitted on 17 Oct 2019
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### Test Suite

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

Error in solution: Line: 4 Column: 25 Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

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

Error in solution: Line: 4 Column: 25 Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

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

Error in solution: Line: 4 Column: 25 Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

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

Error in solution: Line: 4 Column: 25 Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

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

Error in solution: Line: 4 Column: 25 Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.

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

Error in solution: Line: 4 Column: 25 Invalid expression. When calling a function or indexing a variable, use parentheses. Otherwise, check for mismatched delimiters.