---
title: "ClikaRT::ops::sinc"
sidebar_label: "sinc"
description: "Elementwise normalized sinc. \\[ \\mathrm{sinc}(x_i) = \\frac{\\sin(\\pi x_i)}{\\pi x_i} \\] Normalized convention: zeros at nonzero integers, sinc(0) = 1 (matching torch / numpy)."
---

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<span class="api-kind api-kind--function">function</span>

## sinc() {#sinc}

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[`Tensor`](../Tensor.md) **`sinc`**([`Tensor`](../Tensor.md) `input`)

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Elementwise normalized sinc.

$$
\mathrm{sinc}(x_i) = \frac{\sin(\pi x_i)}{\pi x_i}
$$

Normalized convention: zeros at nonzero integers, `sinc(0) = 1` (matching torch / numpy). Value-domain violations follow IEEE semantics (NaN / ±inf in the result), never an error.

**Throws**

- `ClikaRT::Error`: when the input's dtype is not served for this operation (the machine-readable reason rides `code_name()`).

**Returns:** a new tensor, same shape and dtype as `input`.

```cpp
auto y = ClikaRT::ops::sinc(x);
```

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Declared in `ClikaRT/compute/ops.h`, line 5341

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