tran: 2.12765957e-7
just do it straight on your calculator
2.12765957 x shift e (-7) =
Answer: 1.94 x 10
-3 (to 3 significant figures)
you don't need to press the 'power of' button. If you press it you will get the wrong answer or an error message.
It is a good idea to put the -7 in brackets because otherwise the calculator might think that you mean (e
-1) x 7
Check that you get the same answer as me.
+118654 
