---
title: "ClikaRT::ops::logaddexp2"
sidebar_label: "logaddexp2"
description: "Elementwise $ \\log_2(2^a + 2^b) $, logaddexp in base 2. Broadcasts and promotes as add. the broadcast-shaped result at the promoted float dtype."
---

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## logaddexp2() {#logaddexp2}

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[`Tensor`](../Tensor.md) **`logaddexp2`**([`Tensor`](../Tensor.md) `input`, [`Tensor`](../Tensor.md) `other`)

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Elementwise $\log_2(2^a + 2^b)$, [`logaddexp`](./logaddexp.md#logaddexp) in base 2. Broadcasts and promotes as [`add`](./add.md#add).

**Returns:** the broadcast-shaped result at the promoted float dtype.

**Throws**

- `ClikaRT::Error`: (`INVALID_ARGUMENT`) when the operand shapes are not broadcast-compatible.

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Declared in `ClikaRT/compute/ops.h`, line 1496

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