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Solving Equations
7–3
File name 33s-English-Manual-040130-Publication(Edition 2).doc Page : 388
Printed Date : 2004/1/30 Size : 13.7 x 21.2 cm
Ï
Terminates the equation
and displays the left end.
º
Î
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:
Û
_
Prompts for unknown
variable.
D
value
Selects D; prompts for V.
0
¥
value
Stores 0 in V; prompts fo
r
T.
5
¥
value
Stores 5 in T; prompts for
G.
9.8
¥
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:
º
d
Displays the equation.
Û
T
Solves for T; prompts for
D.
500
¥
Stores 500 in D; prompts
for
V.
¥
Retains 0 in V; prompts
for
G.
¥
Retains 9.8 in G; solves
for
T.