<div>Hello Pedro ,</div>
<div> </div>
<div>Thanks for your reply,</div>
<div> </div>
<div>What I meant was how to determine P(x0,y0) </div>
<div>is above the line or LEFT side of the line, </div>
<div>or P(x2,y2) is below the line or RIGHT side of the line.</div>
<div> </div>
<div> </div>
<div>################################################<br><br> P(x0,y0) Above the line <br> <br>This is line -------------------------------o-------------------------------------
<br> P(x1,y1) On the line<br><br> P(x2,y2) Below the line <br>################################################</div>
<div> </div>
<div>Thanks,</div>
<div> </div>
<div>G. LU<br> </div>