x is a vector of undetermined length
You are to replace every 3rd element with the number 4, example:
x = [11 23 34 43 2 31 6 34 5 45 26 7 78];
output = [11 23 4 43 2 4 6 34 4 45 26 4 78];
Make sure the code accounts for varying vector lengths
In view of the recent spate of trivial problems with no test suite to speak of, thanks for making the effort of providing a proper test suite and a slightly less trivial problem.
Extract leading non-zero digit
Basics: 'Find the eigenvalues of given matrix
Number of digits in an integer
Area of an Isoceles Triangle
Matlab Basics II - Intervals
Matlab Basics II - Unit Conversion
Matlab Basics - Absolute Value
Matlab Basics - Rounding III
Matlab Basics - Convert a row vector to a column vector
Matlab Basics II - Determine if an array has a 3rd dimension
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