The big N small A mathematical symbol on the computer refers to the input method symbol in the lower right corner of the computer, right-click the middle keyboard symbol, and then select the mathematical symbol. After entering, you can choose the mathematical symbol of big n and small a.

The invention and use of mathematical symbols are later than numbers, but their number exceeds numbers. There are more than 200 mathematical symbols commonly used in modern mathematics, and each symbol has an interesting experience.

Mathematics is a universal means for human beings to strictly describe the abstract structure and mode of things, and can be applied to any problem in the real world. All mathematical objects are artificially defined in essence.