test case 2 is incorrect. the given function will only return positive values, which means it is not equivalent to sin (and therefore new wine)
adding 'for positive inputs between 0.2 to 0.8'
In terms of Matlab's numerical accuracy, @(z)log10(10*z)-1 is not equal to log10. Therefore, it is new wine, as it produces different results than the built-in function.
I don't understand this problem.
Prime factor digits
Back to basics 8 - Matrix Diagonals
Implement simple rotation cypher
Basics: 'Find the eigenvalues of given matrix
Compress strings (not springs)
Multiply a column by a row
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