Hp 48g Graphing Calculator Manual de usuario Pagina 159

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of how vectors are displayed, the HP 48 stores them internally in
rectangular form.
If you enter one type of coordinates, you can simply change the
coordinate mode to convert vectors to the new coordinate mode.
Entering 2D and 3D Vectors
You can enter 2D and 3D vector components using rectangular,
cylindrical/polar, or spherical/polar form.
To enter a 2D or 3D vector:
To enter specific components, press S)0> enter the components
separated by (SPC) or and press (ENTER). (Press (¡^(a)
just before each angular component.)
To use the current coordinate mode, enter the two or three
component values and press (MTH) vECTR +V2 or -+V3 .
(Don’t enter
The internal rectangular representation of all vectors has the following
effects on displayed polar (cylindrical and spherical) vectors:
É* is normalized to within ±180° (±7r radians, ±200 grads).
m (j) is normalized to within 0 to 180° (0 to tt radians, 0 to 200 grads).
If you key in a negative r, the value is made positive; 9 is increased
by 180°, é is subtracted from 180°, and both are normalized.
If d is 0° or 180°, 6 is reduced to 0°.
If you key in an r of 0, 6 and (p are reduced to 0°.
To assemble a 2D or 3D vector from components on the stack:
For a 2D vector, enter a component on level 1 and level 2, press
(MTHI vECTR 2 . The components are interpreted according
to the current coordinate mode.
B For a 3D vector, enter a component on level 1, level 2, and level
3, press (mth) VECTR -^vR . The components are interpreted
according to the current coordinate mode.
13
Vectors and Transforms 13-3
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