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<DIV><FONT face=Arial size=2>Hello guys.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Slightly off topic, but it's something I'm
programming in PHP on a Linux server so it kind of counts.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I'm writing some stuff in GD lib (php) which draws
me nice graphs. Except I can't remember a thing about trigonometry from
school and I'm struggling.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I have two set of coordinates, eg:<BR></FONT></DIV>
<DIV><FONT face=Arial size=2>1. 0,0</FONT></DIV>
<DIV><FONT face=Arial size=2>2. 25,25</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>With a line drawn between them.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I know that this line is at 135 degrees from 0
(correct me if i'm wrong!). What calculation can I do on these number to give
this this amount in degrees?</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>(Or, let's say my coords are 0,0 drawn to 50,0,
then my angle is 90 degrees (a right angle).)</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>It's really as simple as that.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>I've googled and googled and googled, but I'm
beat.</FONT></DIV>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Any help?</FONT></DIV>
<DIV><FONT face=Arial size=2><BR>Thanks!</DIV></FONT>
<DIV><FONT face=Arial size=2></FONT> </DIV>
<DIV><FONT face=Arial size=2>Kind regards,</FONT></DIV>
<DIV> </DIV>
<DIV><FONT face=Arial size=2>Richard Hayes<BR>DomainArena<BR><A
href="mailto:ricky@domainarena.net">ricky@domainarena.net</A></FONT></DIV></BODY></HTML>