### Search before asking - [X] I have searched the YOLOv5 [issues](https://github.com/ultralytics/yolov5/issues) and [discussions](https://github.com/ultralytics/yolov5/discussions) and found no similar questions. ### Question Where is the arithmetic_3d file and its functions? ### Additional _No response_
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Where is the arithmetic_3d file and its functions?
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