>0 p2 is on the left side of the line (x1 – x0)*(y2 – y0) – (x2 – x0)*(yl – y0){ =0 p2 is on the same line <0 p2 is on the right side of the line pl p2 'pl pl p2 p2 p0 p0 p0 (a) (b) (c)

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
Section: Chapter Questions
Problem 1PE
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Question

Given a directed line from point p0(x0, y0) to p1(x1,
y1), you can use the following condition to decide whether a point p2(x2, y2) is on
the left of the line, on the right, or on the same line.Write a program that prompts the user to enter the three points for p0, p1, and p2
and displays whether p2 is on the left of the line from p0 to p1, to the right, or on
the same line.

>0 p2 is on the left side of the line
(x1 – x0)*(y2 – y0) – (x2 – x0)*(yl – y0){ =0 p2 is on the same line
<0 p2 is on the right side of the line
pl
p2
'pl
pl
p2
p2
p0
p0
p0
(a)
(b)
(c)
Transcribed Image Text:>0 p2 is on the left side of the line (x1 – x0)*(y2 – y0) – (x2 – x0)*(yl – y0){ =0 p2 is on the same line <0 p2 is on the right side of the line pl p2 'pl pl p2 p2 p0 p0 p0 (a) (b) (c)
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