
Section 2: Display Control34


Engineering Notation Display

Engineering notation is similar to scientific notation except that
engineering notation shows all exponents as multiples of three
(e.g., 10^{3},
10^{–6},
10^{12}).




This is particularly useful in scientific and engineering calculations, where
units of measure are often specified in multiples of three. Refer to the
prefix chart below.



Multiplier

Prefix

Symbol



10^{12}
10^{9}
10^{6}
10^{3}
10^{–3}
10^{–6}
10^{–9}
10^{–12}
10^{–15}
10^{–18}




tera
giga
mega
kilo
milli
micro
nano
pico
femto
atto








Engineering notation is selected by pressing
g
ENG followed by a number key. The first significant
digit is always present in the display, and the number key specifies the number
of additional significant digits to which the display is rounded. The decimal
point always appears in the display. For example, key in 28.17939 ×
10 ^{–16} and change the number of significant digits displayed to
see what happens to the number. Remember that the HP41C prompts you
(with ENG _) for the number of
significant digits.


