User Manual

Chapter 12: Vectors
173
12VECTR.DOC TI-86, Chap 12, US English Bob Fedorisko Revised: 02/13/01 2:31 PM Printed: 02/13/01 3:03 PM Page 173 of 10
The VECTR MATH Menu
- Š (
NAMES EDIT MATH OPS CPLX
cross unitV norm dot
cross(
vectorA
,
vectorB
)
Returns the cross product of
vectorA
and
vectorB
, both of which are real or
complex two-element or three-element vectors; expressed with variables,
cross(
ã
a,b,c
ä
,
ã
d,e,f
ä
)
returns
ã
bf
N
ce cd
N
af ae
N
bd
ä
unitV
vector
Returns a unit vector where each element of a real or complex
vector
is
divided by the vector norm
norm
vector
Returns the Frobenius norm (
G
(
real
2
+
imaginary
2
)) where the sum is over
all elements of a real or complex
vector
dot(
vectorA
,
vectorB
)
Returns the dot product of
vectorA
and
vectorB
, both of which are real or
complex vectors; expressed with variables,
dot(
ã
a,b,c
ä
,
ã
d,e,f
ä
)
returns
ad+be+cf
The VECTR OPS (Operations) Menu
- Š )
NAMES EDIT MATH OPS CPLX
dim Fill
4
Pol
4
Cyl
4
Sph
44
Rec li
4
vc vc
4
li
dim
vector
Returns the dimension of (or number of elements in)
vector
#ofElements
¶
dim
vectorName
Creates a new
vectorName
of the specified length (
#ofElements
);
each element is 0
#ofElements
¶
dim
vectorName
Redimensions
vectorName
to the specified length (
#ofElements
)
Fill(
number
,
vectorName
)
Stores a real or complex
number
to every element in
vectorName
Press
X
to enter the
¶
symbol after
#ofElements
.