Does the following algorithm produce a unit vector (i.e. with length one) starting from the origin towards a random direction? Verify your answer by writing a program that visualizes the angle distributions with respect to the x-axis. My-Vector() out: unit vector (x , y ) towards a random direction 1: x ← 2 · Random-Unit() − 1 2: y ← 2 · Random-Unit() − 1 3:  ←      x2 + y2   Distance from (0, 0) to (x, y). 4: return (x/, y/)   Scale to the unit circle.

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
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Does the following algorithm produce a unit vector (i.e. with length one) starting from
the origin towards a random direction? Verify your answer by writing a program that
visualizes the angle distributions with respect to the x-axis.
My-Vector()
out: unit vector (x
, y
) towards a random direction
1: x ← 2 · Random-Unit() − 1
2: y ← 2 · Random-Unit() − 1
3:  ←     
x2 + y2 
 Distance from (0, 0) to (x, y).
4: return (x/, y/) 
 Scale to the unit circle.

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