Please improve the test suite. There are two glaring problems. First, there is only one test case—it is recommended that at least three be provided, though more are often necessary to prevent hard-coded workarounds. Second, do not provide the solution in the test case(s). For such a problem, the answer should be calculated beforehand and provided as a predefined number to hide the solution. Furthermore, candidate functions can be checked against the solution using an adequate error bound (perhaps within 1E-3) rather than isequal().
Make a Palindrome Number
Specific Element Count
Matlab Basics II - Extract last 3 elements of a vector
Volume of a box
Array of Ones
Find the mean of two vectors
Simple String Concatenation
Matrix element wise multiplication
Automatic String Editing
Replace 0 indices in array with 1's
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