The computer expresses the power of 10 generally using E or e, that is,
1.03 times 10 to the 9th power, can be abbreviated as "1.03E+09"
-1.03 times 10 to the 9th power, can be abbreviated as "-1.03E+09"
1.03 times 10 to the power of -9, can be abbreviated as "1.03E-09"
-1.03 times 10 to the power of -9, can be abbreviated as "-1.03E-09"
1.03e+09 is equivalent to the decimal point to the right? Move 9 digits 1.0310^(9)
1.03e-09 is equivalent to the decimal point to the left? Move 9 digits 1.0310^(-9)