sinso gismu

x₁ is the trigonometric sine of angle/arcsine x₂.

See also tanjo.

jbovlaste

In notes:

tanjo: x₁ is the trigonometric tangent of angle/arctangent x₂.
dutsinso: x₁ is the trigonometric cosine of angle/arccosine x₂.
seldutsinso: s₂ is the angle/arccosine of cosine s₁.
selsinso: s₂ is the angle/arcsine of sine s₁.
seltanjo: t₂ is the angle/arctangent of tangent t₁.