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thebookofshaders/glossary/floor/README-vi.md

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## Floor
Find the nearest integer less than or equal to the parameter
### Các phiên bản
```glsl
float floor(float x)
vec2 floor(vec2 x)
vec3 floor(vec3 x)
vec4 floor(vec4 x)
```
### Các tham số
```x``` specify the value to evaluate.
### Mô tả
```floor()``` returns a value equal to the nearest integer that is less than or equal to ```x```.
<div class="simpleFunction" data="y = floor(x); "></div>
### Tham khảo thêm
[ceil](/glossary/?lan=vi&search=ceil), [fract](/glossary/?lan=vi&search=fract), [mod](/glossary/?lan=vi&search=mod), [Các hàm số cơ bản (Hàm hình dạng - Shape function)](/05/?lan=vi)