High school mathematics: how to read the coordinates in the polar coordinate system? Talk about the logic, it should be easy to understand. Give a few more examples to illustrate.
The reading method of mathematical formulas is very random in advanced mathematics or scientific and technological literature. This is because many formulas can only be seen, thought and thought; Can't "read it out". In middle school, we often need to "read formulas" in order to let others know what you are talking about. Let me draw a picture for your reference. Pronunciation is also marked in the picture.