arc cosecant

arc cosecant [′ärk kō′sē‚kant]

(mathematics)

Also known as anticosecant; inverse cosecant.

For a numberx, any angle whose cosecant equalsx.

For a numberx, the angle between -π/2 radians and π/2 radians whose cosecant equalsx; it is the value atxof the inverse of the restriction of the cosecant function to the interval between -π/2 and π/2.