Texas Instruments BA II PLUS - Manual (Page 15)

Overview of Calculator Operations 11
For example, working in the Bond worksheet, you might want to round a
computed selling price to the nearest penny (two decimal places) before
continuing your calculation.
Note: The calculator stores values to an accuracy of up to 13 digits. The
decimal format setting rounds the displayed value but not the
unrounded, internally stored value. (See “
Choosing the Number of
Decimal Places Displayed ” on page 4.)
Scientific Notation ;
When you compute a value in the standard-decimal format that is either
too large or small to be displayed, the calculator displays it in scientific
notation, that is, a base value (or mantissa), followed by a blank space,
followed by an exponent.
With AOS™ selected, you can press ; to enter a number in scientific
notation. (See “ Choosing Calculation Methods ” on page 5.)
For example, to enter 3 Q 10 3 , key in 3 < 10 ; 3 .