? +,-,? * ,? /
2. Expression of fraction (e.g. 3/5, 7/2)
53 (3/5)
The third power of 3.2 is 8.
2? 3 8
4. Statement of root number (e.g. root number 5)
(5)
Is this the correct way to use it? (+) (-) Yes, but it's basically not used now. One more thing.
Mi Fang: This is an area unit ㎡, not a prescription.