Casio fx-250D Manual Del Usuario página 6

Register contents at point A. . --
3/CALCULATION RANGE AND...
SCIENTIFIC NOTATION
~9.9999999 ~10 -1077 eee iz Ll 1 tot
x10"
ZA, Scientitic notation
When thea answer r exceeds. the norma! display capaci-
ty, it-is automatically shown by scientific notation,
8-digit mantissa and exponents of 10 up to +99.
— 1.2345678 ~ 99
_@ The minus (-) sign far mantissa
@) The mantissa
@ The minus (-} sign for exponent.
4) The exponent of ten
The whole display is read:
— 1.2345678 x 10°"
1.
"Entry can be made in scientific notation by using 'the
ff] key after entering the mantissa.
_EXAMPLE. OPERATION READ-OUT"
-1. 2345678 x 107° |
(= —0.0012345678)
1212345678
(Ex)
3
—4.2345678
—1.2345678 00
~ 12345678 —03
- ~ AIOVERFLOW OR ERROR CHECK |
ot When an answer, whether. intermediate or ° final, or
.+ accumulated tatal. in the memory is more than
. Overflow or error is indicated by, the "- LEA" G or "= -
ZB Sion and stops further calculation. -
Za. Overflow or error occurs:
+9,9999999 x 10% ("-E~", sign appears).
6} When function calculations are performed. with a
_fhurnber exceeding ,the input range ("+E-"" sign
appears}. .
c} When unreasonable. operations are pérformed.- in
statistical: calculations ('-E~"'. sign appears).
al When the total number of levels of explicity and/or
: implicity.
{with
-addition- subtraction
versus
multiplication-division including. x".and xs) .nested
: parentheses exceeds 6, or more, than.18 pairs-of
. parentheses are used (eo C —" sign appears)...
; «- Ex.) You have pressed the +) key 18 times continu-
ous! he designating the sequence of
"To release these overflow checks:
al, bl, She Press the BQ key.
d).. s / t Press the 8 key. Or press the key,
and the intermediate result:just before
the overflow occurs is displayed and
the subsequent calculation is possible.
'Memory protection:
The content of the memary is protected against over-
flow or error_and the accumulated total is recalled by
-pressing the (#8) key after the overflow check is released
by the is key.
=g—