HP Prime Graphing NW280AAABA manual Unit calculations, Prefixes, Palette of prefixes

Prefixes	The Units menu includes an entry that is not a unit
	category, namely, Prefix. Selecting this option displays
	a palette of prefixes.

Y: yotta	Z: zetta	E: exa	P: peta	T: tera
G: giga	M: mega	k: kilo	h: hecto	D: deca
d: deci	c: centi	m: milli	μ: micro	n: nano
p: pico	f: femto	a: atto	z: zepto	y: octo

Unit prefixes provide a handy way of entering large or small numbers. For example, the speed of light is approximately 300,000 m/s. If you wanted to use that in a calculation, you could enter it as 300_km/s, with the prefix k selected from the prefix palette.

Select the prefix you want before selecting the unit.

Unit calculations

A number plus a unit is a measurement. You can perform calculations with multiple measurements providing that the units of each measurement are from the same category. For example, you can add two measurements of length (even lengths of different units, as illustrated in the following example). But you cannot add, say, a length measurement to a volume measurement.

444 Units and constants