Canon F-10 - Advanced Mathematical and Conversion Keys; Display and Indicator Features

double-function key, and it is required to
depress this key after entry of a and again after
entry of x. x can be any real number, and a can
be any
positive real number .
II Square Key
Used for finding a square of the displayed
conten ts.
a Square Root Key
Used for finding a square ro ot of the displayed
con ten ts.
a Cube Root Key
Used for finding a cube root of the displayed
con ten ts.
I! Decimal Degree Key
Used for conve rti ng a value in degree/
minute /second into a value in decimal degree. A
value
to be converted shou Id be entered as x x.
yy zz (x , degree; y, minute; z, second).
!:i Degree Key
Used for converting a value in radian into a
value
in degree.
f! Radian Key
Used for converting a value in degree into a
value
in radian.
I! Rectangular Key
Used for converting rand e of polar coordi-
nates into x and y of r ectangular coordinates .
Depress this
key afte r entry of r and then enter
e and depress this key again to find x; depress
this
key once more again to find y .
~ Polar K ey
Used
for converting x and y of rectangular
coordinates into rand e of polar coordinates .
Depress
this key after ent ry of x and then enter
y and depress this key again to find r; depress
this key once
more again to find B.
~L' Round-Off Switch
~ ..
Used for round-up, round - off or round-down to
the preselected decimal digits of the results.
Rounding is performed, according to desig-
nation, at the stage of obtaining the final result.
Set the switch to the l eft for rounding up,
to th e center for rounding off, and to the right
for rounding down _
•
Decimal Point Selector
Used for designating the decimal point position
in the calculation result. Designated settings are
0, 1, 2, 3, 4, 5, 6 and F (floating) positions
below the decimal point.
OV ~t"'" Overflow Lam p
Lights up in the following cases, preventing
further entries or calculations.
(1) When the entered numeral overflows:
Lights up when the 13th digit is entered.
Depress the
II key to shift down by 1
digit and resume calculation.
(2) When double entry is mistaken ly made:
Depress
the II key to sh i ft down by
digit and make a re -entry.
(3) When the calculation result overflows:
The overflow lamp lights up when the
integers
of the results exceeds the 12th
digit. In this case, clear with the @] key.
(4) When
the memory overflows:
The overflow I amp I ights up when the
integers
of .the memory content exceeds
the
12th digit. In this case, clear with the
§] key
o Memory Lamp
Thi s lamp lights up when data is entered in the
memory and indicates that the memory is in
use_
c::J Minus Sign
This sign is displayed immediately in front of
the displayed numeral when it becomes a
negative
number.
When the full 12 digits are displayed, the minus
sign is indicated at the right-most of the display
panel; when the number of display digits is less
than 12, the minus sign is displayed floatingly
just before the displayed figure.
(J 3--Digit Automatic Punctuation Lamps
They automatically light to mark off displayed
figures into groups of 3 digits, starting from the
decimal point.
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