Square root of a Function: Nails

 

The fingernail, specifically when grown out to a longer length, resembles the square root of a parabolic function. The nail creates a shallow curvature which curls against itself at the ends, reflecting the same shape as that of a square root of a parabola. The square root of a parabola creates this shape as it follows the transformation of y = √f(x) or (x,√y), and because of this specific application the nature of square rooting a function is that the transformation line will go larger (outside) of the original parameters, as fractions become larger numbers rather than smaller, creating the curl at the end of the line like the nail does.

Other humanoid Square root of a functions:

Collar Bone

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