User:PCMorphy72/math
Appearance
Formula without apparent conditional construct:
, that is useful e.g. to define the multivalued version of each inverse trigonometric function: e.g. . However, this might appear to conflict logically with the common semantics for expressions such as sin2(x) (although only sin2 x, without brackets, is the really common one) [...] This potentially avoids confusion with the multiplicative inverse, which should be represented by sin−1(x), cos−1(x), etc., or, better, by sin−1 x, cos−1 x, etc.