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11
4) Fonctions logarithmiques
Calcul de la fonction naturelle (Qn x)et
ordinaire
(log
x)
avec
x
en
pr
essa nt les
'
touches
~
(
~ ~
).
5) Fonctions exponentielles
Calcul de eX et yX avec x en pressant les touches
0 (210
6) Racines carrees
Calcul de
rx
avec X en pressant la touche
[rj]
.
3.
Programmation
II est possible de programmer les calculs jusqu'a 64 pas.
Toutes
les
touches
d
e
fonctions
peuvent se stocker d
a
ns la memoire de programmation,
a
I'exception d
e
la
touche
0
,
des touches numeriqu
es
qui
suivent
la touche
~
,et de la touche
I}D
.
IV
EXPLANATION OF SELECTORS, KEYS
,
AND LAMPS
1.
Selectors
7.
1) RAD:
To
perform trigonometric
or inverse trigonometric functions with radians,
the
RAD position mu
st
be
selected.
DEG
:
To
perform trigonometric
or inverse trigonometric functions with degrees,
the
DEG
position
must
be
selected.
2
) EXP:
Thi
s
position designates the display of
e
ntry numbers or results in Expo-
nential.
FLOAT:Thi
s
position will result
in
the display of
e
ntry numbers or results in Float-
ing d
ec
imal point
system
.
Keys
0
§
~
I
~
~
l:;J
,"
,<
[
,~
Clears all the calculation registers, step counter, error
etc.
It will not clear
the memory registers (or the program steps).
Clears display register (X register)
.
Numeric keys to enter a number and also to write in a constant number in
the program memory.
When these keys are pressed following
bfd
key, the function shown on the
lower part of each key top will be computed.
Enters the decimal point
in
the display register.
When this key is pressed
following
bfd
key, it calculates log
X
function.
This key will change the sign of the number in the display.
When this key is pressed
following
bfd
key, it calculates Qn X function.
This key must be followed by numerical keys. To enter a number as a
ex-
ponent, press
B
and numerical keys.
12
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