Editing Inverse trigonometric functions (section)

{{Short description|Inverse functions of sin, cos, tan, etc.}}
{{use dmy dates|date=July 2022 |cs1-dates=sy }}
{{Trigonometry}}
{{redirect|Arctangent}}

In [[mathematics]], the '''inverse trigonometric functions''' (occasionally also called ''antitrigonometric'',<ref name="Hall_1909"/> ''cyclometric'',{{r|cyclometric}} or ''arcus'' functions{{r|arcus}}) are the [[inverse function]]s of the [[trigonometric functions]], under suitably restricted [[Domain of a function|domains]]. Specifically, they are the inverses of the [[sine]], [[cosine]], [[tangent (trigonometry)|tangent]], [[cotangent]], [[secant (trigonometry)|secant]], and [[cosecant]] functions,<ref>{{Cite web|last=Weisstein|first=Eric W.|title=Inverse Trigonometric Functions|url=https://mathworld.wolfram.com/InverseTrigonometricFunctions.html|access-date=2020-08-29|website=mathworld.wolfram.com|language=en}}</ref> and are used to obtain an angle from any of the angle's trigonometric ratios. Inverse trigonometric functions are widely used in [[engineering]], [[navigation]], [[physics]], and [[geometry]].