# shz_vec4_dot

Source: https://sh4zam.com/api/vector/shz_vec4_dot/

```c
SHZ_INLINE float shz_vec4_dot(shz_vec4_t vec1, shz_vec4_t vec2) SHZ_NOEXCEPT;
```

Returns the dot product between the two given 4D vectors.

## Parameters

| Name | Type | Description |
| --- | --- | --- |
| `vec1` | `shz_vec4_t` |  |
| `vec2` | `shz_vec4_t` |  |

## Returns

`float`

## Availability

- **C++ equivalent:** none (call the C function from C++)
- **Type-generic form:** [`shz_vec_dot()`](https://sh4zam.com/api/vector/shz_vec_dot/)
- **Back-ends:** SH4: shared C implementation · SW: portable C · SPU: shared C implementation
- **Defined in:** [`sh4zam/shz_vector.h:484`](https://github.com/gyrovorbis/sh4zam/blob/ba1e30c88d49df0311870b229e1dd860ef26c477/include/sh4zam/shz_vector.h#L484)
- **Module:** [Vector](https://sh4zam.com/api/vector/), section "Binary Operations"