Casio fx-991W Calculator User Manual


 
E-18
2.
00
1.
00
1.732050808
00
T
R
*For displayed values, the calculator selects the ENG sym-
bol that makes the numeric part of the value fall within
the range of 1 to 1000.
* ENG symbols cannot be used when inputting fractions.
* The ENG mode cannot be used in combination with the
CMPLX, or BASE-N modes.
•Performing any of the key operations in the above table
while you are not in the ENG mode inputs the exponen-
tial value in the “Unit” column (without inputting the ENG
symbol).
Example: 9Ö10 = 0.9 m (milli)
F F F F F 1
0.
ENG
9 \ 10 =
900.
9
Ϭ1 m
In the ENG mode, even standard (non-ENG)
calculation results are displayed using ENG symbols.
A P
0.9
J
900.
9
Ϭ1 m
k
Coordinate Conversion (Pol(x, y), Rec (r,
θ
))
•Calculation results are automatically assigned to vari-
ables E and F.
Example 1: To convert polar coordinates (r҃2,
҃60°)
to rectangular coordinates (x, y) (DEG mode)
x
A F 2 P 60 T =
y 0 o
0 n, 0 o swaps displayed value with value in
memory.
Example 2: To convert rectangular coordinates (1,
3)
to polar coordinates (r,
) (RAD mode)
r
A f 1 P L 3 T =