-0.00002006 scientific counting method
The key is to keep a few significant figures
Reserve a negative fifth power of - 2 * 10
Reserve two digits: - 2.0 * 10 negative quintic
Retain three digits: - 2.00 * 10 negative quintic power
Reserve four digits: - 2.0006 * 10 negative fifth power
Scientific counting method of 0.00030
Scientific count of 0.00030
3 x 10 ^ (-4)
35989.76 this data is represented by scientific counting method, and two significant numbers are reserved
The fourth power of 3.6 * 10
That's true