2. Enter vectors describing the initial path of
the boat, water current, and resultant path
of the boat.
Store these vectors as
value
for the unknown speed of the
a
current. Use the value
the boat.
Enter:
!
[20,80
¡
]
i
!
[a,0
]
c
¡
!
[b,60°]
r
Vectors are commonly written in either polar
or rectangular form, so it is useful to convert
polar vectors into rectangular form.
3. Define function
Enter:
Define p2r(x)=[x[1,1]*cos(x[1,2]),
x[1,1]*sin(x[1,2])]
Activities
,
, and
. Use the
i
c
r
for the speed of
b
.
p2r
756