Casio fx-100AU PLUS User Manual page 29

To copy vector variable (or VctAns) contents:
1. Use the Vector Editor to display the vector you want to copy.
• If you want to copy VctA, for example, perform the following key operation:
15(VECTOR)2(Data)1(VctA).
• If you want to copy VctAns contents, perform the following to display the
VctAns screen: A15(VECTOR)6(VctAns)=.
2. Press 1t(STO), and then perform one of the following key operations
to specify the copy destination: -(VctA), $(VctB), or w(VctC).
• This will display the Vector Editor with the contents of the copy
destination.
Vector Calculation Examples
The following examples use VctA = (1, 2) and VctB = (3, 4) from
(2, –1, 2) from
pressing 15(VECTOR) and then pressing one of the following number
keys: 3(VctA), 4(VctB), 5(VctC).
3 × VctA (Vector scalar multiplication), 3 × VctA – VctB (Calculation
3 3
example using VctAns)
4 4
VctA VctB (Vector dot product)
•
AVctA15(VECTOR)7(Dot)VctB=
VctA × VctB (Vector cross product)
5 5
6 6
Obtain the absolute values of VctC.
7 7
Determine the angle formed by VctA and VctB to three decimal
places (Fix 3). v
(cos =
1N(SETUP)6(Fix)3
A(VctA15(VECTOR)7(Dot)VctB)/
. You can input a vector variable into a key operation by
2
AVctA*VctB=
ADVctC)=
(A B)
•
, which becomes
A B
A 3 *VctA=
-VctB=
= cos
E-28
VCT VCT
VCT VCT
VCT VCT
VCT VCT
VCT VCT
(A B)
•
–1
)
A B
, and VctC =
1