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Angle Between Two Vectors
The angle between vectors v{=x;i+y;j and v,=x,i+y,j can be calcu-
lated by converting both vectors to polar coordinates and calculating
the difference between the two angles.
Example: Find the angle between:
v = —2i + 4
v, = 6i + 5
y
(6,5)
(—2,4)
V4
V2
X
Keys:
Display:
Description:
B(moDES] {DG}
Sets Degrees mode.
6 [§(xCOORD]
x=6.0000
Stores x and y for v,.
5 l(»COoORD]
»=5.0000
BANGLE)
A
8=39.8056
Calculates 8 for v, and
stores value in variable
A.
2
B(xCOoORD]
x=-2.0000
Stores x and y for v;.
4 @(CoorD])
»=4,0000
BANGLE
8=116.5651
Calculates 0 for v;.
(=]
A (=)
76,7595
Calculates angle be-
tween v; and v,.
8: Additional Examples
115
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