# round, sin, cos, sqrt, atan2, mod, floor... functions in OpenCV!

In matlab we have many function to perform an procedure for per element of matrix, example round, sin, cos, sqrt, atan2, mod, floor ......... here is an example:

A = [1.23 2.34 3; 5 6.78 7.89; 4.111 34.56 56.78]

A =

```
1.2300 2.3400 3.0000
5.0000 6.7800 7.8900
4.1110 34.5600 56.7800
```

B = round(A)

B =

```
1 2 3
5 7 8
4 35 57
```

can you please give me some recommend to perform those function above.

example: cv::OutputArray round(cv::InputArray _src) { }

thank alot!