Sin function Memes

Looks like innocent mathematical expressions are now getting flagged by search engines. The Taylor series for sin(x) = x - x³/3! + x⁵/5! - ... is apparently too provocative for SafeSearch. Those alternating signs and factorial denominators must be quite risqué. Next thing you know, they'll put parental advisories on calculus textbooks and ID-check students buying graphing calculators.