sin
-1
cos
-1
tan
-1
Trigonometric function / Inverse trigonometric function keys
ID D IE E IF F
●
Press one of these keys prior to entering a value to obtain the respective trigonometric function for the
value
●
Press
and then one of these keys prior to entering a value to obtain the respective inverse
trigonometric function for the value.
●
Press in the BASE-N mode to enter D, E, F (13
10
, 14
10
, 15
10
) of a hexadecimal value.
d/c
Fraction / Negative key
Neg G
●
Use this key for input of simple fractions and mixed fractions
Ex. To input 23/45: 23 ab/c 45 To input 2+3/4: 2 ab/c 3 ab/c 4
●
For improper fractions, press this key following
(indicated by
ad/c
in this manual)
●
Press in the BASE-N mode prior to entering a value to obtain the negative of that value. The negative
number is the two’s complement of the value entered.
Assignment key
Scl
H
●
Press prior to entering a memory to assign the result of a calculation to the memory
Ex To assign the result of 12+45 to memory A: 12+45 °
˙
●
Press this key following
to clear all data from the statistical memories.
, ;
Parenthesis keys
I J
●
Press the open parenthesis key and the closed parenthesis key at the position required in a formula.
●
When pressed following the
key, a comma or semicolon can be inserted to separate the
arguments in coordinate transformation or consecutive calculations.
Abs
Power / Absolute value key
and
CL
K
●
Enter x (any number), press this key and then enter y (any number) to compute x to the power of y. In
the SD or LR mode, this function is only available after pressing the
key.
●
Press following the key to obtain the absolute value of a subsequently entered numeric value.
●
Press in the BASE-N mode to obtain a logical product (“and”).
●
Press in the SD or LR mode to delete input data.
3
√
−
Root / Cube root key
or
DT
L
●
Enter x, press this key and then enter y to calculate the xth root of y. In the SD or LR mode, this
function is only available after pressing the
key.
●
Press following the key to obtain the cube root of a subsequently entered numeric value.
●
Press in the BASE-N mode to obtain a logical sum (“or”)
Used as a data input key in the SD or LR mode.
1.3.6 Contrast adjustment
Pressing the or key following the
key adjusts the contrast of the display.
Pressing makes the screen lighter, while makes it darker. Holding either key down will cause the
display to successively become respectively lighter or darker.
Pressing any other key besides
, , or (as well as , ) cancels contrast adjustment.
If the display becomes dim and difficult to read, even if you increase contrast, it probably means that
battery power is getting low. In such a case, replace battery as soon as possible. After replacing battery,
perform the RESET operation.
Contrast adjustment is impossible during range display using the key or during factor display
using the
key.
Copyright L
EXIBOOK
2002
- 13 -
GB
sin
a
b/c
→
cos
(
)
tan
SHIFT
SHIFT
SHIFT
SHIFT
SHIFT
SHIFT
SHIFT
SHIFT
SHIFT
MODE
MODE
Range
Factor
ALPHA
A
EXE
x
y
x
√
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