arcsinvnv
Arcsinvnv is a term that appears in mathematical notation and programming libraries but does not have a single, universally accepted definition. In practice, it is often used to denote a variant of the inverse sine operation that includes input normalization or scaling by a parameter denoted nv, with the aim of improving numerical stability or mapping values into a standard domain.
A common interpretation in software contexts is arcsinvnv(x, nv) = arcsin(clamp(x / nv, -1, 1)), where nv is
Variants exist. Some definitions omit clamp and require the user to guarantee that |x| <= nv, while
Examples illustrate usage: arcsinvnv(0.5, 2) equals arcsin(0.25). Different libraries may document this function differently, and in
Because arcsinvnv is not standardized, users should consult the specific documentation of the library or paper