HP 49g Graphing Calculator - Manual (Page 159)

You enter a vector by specifying its components between square brackets;
1. Press
0 O
2. Enter the first component.
If you are entering a real vector rather than a symbolic vector,
immediately follow each component with a decimal point (as in the
example below).
3. Enter each subsequent component.
Separate rectangular components with a
comma but precede an angular
component with the angle sign: d. (The
angle sign can be entered by pressing
®HA)©6.)
4. Press (ENTER).
You can also enter a vector by creating a single-row matrix with Matrix
Writer. This is explained later in this chapter.
Entering vectors
ftilD KYS HEK Ï5.V ‘K'
ÍHOMEJ
RflD RiZ HER
ÍHOHEI_____
If the coordinates notation does not match
your entry, the HP 49G converts your entry
to tliat notation. In the example at the right,
the second argument—4.—is converted to
an angle measurement because the
coordinates notation is set to polar
(indicated by the polar annunciator). Note that symbolic vectors—
including those with integer elements—are not converted to the angle
measurements.
:[3. 4. 5.]
[5. ¿.927295218002 5.1
Vector mathematics
Two vectors can be added and subtracted on the HP 49G just as real
numbers are added and subtracted. For instance, to add two vectors,
enter the first vector, press ©, enter the second vector and press
You can also multiply and divide a vector by a scalar.
The HP 49G also provides a number of special commands for working
with vectors. Three of these commands—absolute magnitude, dot
product, and cross product—are described in detail in the next three
sections.
Vectors, lists, arrays, and matrices Page 8-3