HP 35s User Manual

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

HP 35s Specifications

General

Type	Scientific
Form factor	Pocket
Product color	Black
Digits	14 digits
Display number of lines	2 lines
Keyboard type	Alphanumeric
Menus and prompts	Yes

Weight and Dimensions

Dimensions (WxDxH)	157.9 x 18 x 82 mm