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.
Square Digits Number Chain Terminal Value (Inspired by Project Euler Problem 92)
I've got the power! (Inspired by Project Euler problem 29)
sum of non-primes
The Answer to Life, the Universe, and Everything
Create One Large Eye of size N x N Quickly?
speed vs size
Simple spirometer - find your lung capacity from the number and size of soap bubbles in one breath
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