The recurring decimal 3.999... is also described as 3.9 recurring.
The recurring decimal 3.999... is also described as 3.9 recurring.
循环小数｀3.999...＇亦作｀3.9循环＇.
The recurring decimal 3.999... is also described as 3.9 recurring.
循环小数｀3.999...＇亦作｀3.9循环＇.