Casio FX-CG10, Руководство пользователя

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2-62
u
Vector Addition, Subtraction, and Multiplication
[OPTN]-[MAT/VCT]-[Vct]
Example 1 To determine the sum of the two vectors shown below (Vct A + Vct B):
Vct A = [ 1 2 ] Vct B = [ 3 4 ]
K
2
(MAT/VCT)
6
(
g
)
6
(
g
)
1
(Vct)
av
(A)
+
1
(Vct)
al
(B)
w
Example 2 To determine the product of the two vectors shown below (Vct A
×
Vct B):
Vct A = [ 1 2 ] Vct B =
K
2
(MAT/VCT)
6
(
g
)
6
(
g
)
1
(Vct)
av
(A)
*
1
(Vct)
al
(B)
w
Example 3 To determine the product of the matrix and vector shown below (Mat A
×
Vct B):
Mat A = Vct B =
K
2
(MAT/VCT)
1
(Mat)
av
(A)
*
6
( g )
6
( g )
1
(Vct)
al
(B)
w
• When performing addition or subtraction of two vectors, they both must have the same
dimensions.
• When multiplying Vct A (1
×
n
) and Vct B (
m
×
1),
n
and
m
must be the same.
u
Dot Product
[OPTN]-[MAT/VCT]-[DotP]
Example To determine the dot product of the two vectors below
Vct A = [ 1 2 ] Vct B = [ 3 4 ]
K
2
(MAT/VCT)
6
(
g
)
6
(
g
)
2
(DotP( )
1
(Vct)
av
(A)
,
1
(Vct)
al
(B)
)
w
3
4
3
4
1 2
2 1
1 2
2 1
1
2
1
2