Best way to find an answer with an exponent. For example, my equation is (9*10e9)*(1.6*10e-19)^2/(1.0*10e-15)^2. And the final answer I got was 2.304. But the answer is 2.304*10e-28.
+128406 (9*10^9)*(1.6*10^-19)^2/(1.0*10^-15)^2 =
[9 * 1.6^2 * 1^2) ( 10^9 * 10^[(-19)*2] * 10^[15*2] ) =
(23.04) (10^9 * 10^-38 * 10^30 ) =
23.04 * 10 =
230.4
WolframAlpha verifies this :
https://www.wolframalpha.com/input/?i=(9*10%5E9)*(1.6*10%5E-19)%5E2%2F(1.0*10%5E-15)%5E2
