HP 33s User Manual
Page 113
Solving
Equations
7–3
/#º!- )ºº!:
Terminates the equation
and displays the left end.
|
/
/
Checksum and length.
g
(acceleration due to gravity) is included as a variable so you can change it for
different units (9.8 m/s
2
or 32.2 ft/s
2
).
Calculate how many meters an object falls in 5 seconds, starting from rest. Since
Equation mode is turned on and the desired equation is already in the display, you
can start solving for D:
Keys:
Display:
Description:
#_
Prompts for unknown
variable.
D
#@
value
Selects D; prompts for V.
0
g
!@
value
Stores 0 in V; prompts for
T.
5
g
@
value
Stores 5 in T; prompts for
G
.
9.8
g
#
/
)
Stores 9.8 in G; solves
for D.
Try another calculation using the same equation: how long does it take an object
to fall 500 meters from rest?
Keys:
Display:
Description:
| H
/#º!- )ºº!:
Displays the equation.
T
@
)
Solves for T; prompts for
D
.
500
g
#@
)
Stores 500 in D; prompts
for V.
g
@
)
Retains 0 in V; prompts
for G.
g
#
!/
)
Retains 9.8 in G; solves
for T.