Angle Between Vectors - HP 35s User Manual



Angle between vectors

The angle between two vectors, A and B, can be found as
ACOS(A B/ A
Find the angle between two vectors: A=[1,0],B=[0,1]
Keys:
9
()
9
()

3
Õ
3
Õ
3
 Õ
3
 

Find the angle between two vectors: A=[3,4],B=[0,5]
Keys:
9
()
9
()
3
3

3


B
)















Display:

Display:

Presses for dot product
,and the dot product of two
vectors is 28
=
Description:
Switches to ALG mode
Sets Degrees mode
Arc cosine function
Enters vector A [1,0]
Enters vector B [0,1] for dot
product of A and B
Finds the magnitude of
vector A [1,0]
Finds the magnitude of
vector B [0,1]
The angle between two
vectors is 90
Description:
Switches to RPN mode
Sets Degrees mode
Finds the dot product of
two vectors
Finds the magnitude of
vector [3,4]
Vector Arithmetic
10-5