Casio fx-991ES PLUS Manuale Utente
E-35
3 × VctA (Vector scalar multiplication), 3 × VctA – VctB (Calculation
example using VctAns)
3 VctA
VctB
VctA
•
VctB (Vector dot product)
VctA(VECTOR)(Dot)VctB
VctA
s
VctA VctB
Obtain the absolute values of VctC.
@(Abs)VctC
Determine the angle formed by VctA and VctB to three decimal
places (Fix 3).
B
(cos
θ
=
(A
•
B)
A
B
, which becomes
θ
=
cos
–1
(A
•
B)
A
B
)
(SETUP)(Fix)
VctA(VECTOR)(Dot)VctB
@(Abs)VctA@(Abs)
VctB
2(cos
–1
)
Scientific Constants
Your calculator comes with 40 built-in scientific constants that can be used in
any mode besides BASE-N. Each scientific constant is displayed as a unique
symbol (such as
any mode besides BASE-N. Each scientific constant is displayed as a unique
symbol (such as
P), which can be used inside of calculations.
To input a scientific constant into a calculation, press
(CONST) and
then input the two-digit number that corresponds to the constant you want.
3
3
4
4
5
5
6
6
7
7
VCT
FIX
VCT
FIX
VCT
FIX
VCT
FIX