---
title: "acosh"
sidebar_label: "acosh"
description: "Kotlin binding reference: acosh."
---

<!-- Generated by tools/api_reference/generate_api_docs.py. Do not edit. -->

//[clika-runtime](../../../index.md)/[io.clika.runtime](../index.md)/[Ops](index.md)/[acosh](acosh.md)

# acosh

[common]\
fun [acosh](acosh.md)(input: [Tensor](../Tensor/index.md)): [Tensor](../Tensor/index.md)

`acosh(input: Tensor)`: the `acosh` operator. Elementwise inverse hyperbolic cosine. Inputs below `1` produce NaN. Value-domain violations follow IEEE semantics (NaN / ±inf in the result), never an error.