Drexel dragonThe Math ForumDonate to the Math Forum



Search All of the Math Forum:

Views expressed in these public forums are not endorsed by Drexel University or The Math Forum.


Math Forum » Discussions » Math Topics » alt.algebra.help.independent

Topic: Help me do what I need to do
Replies: 1   Last Post: Dec 25, 2009 5:31 AM

Advanced Search

Back to Topic List Back to Topic List Jump to Tree View Jump to Tree View   Messages: [ Previous | Next ]
melB

Posts: 1
Registered: 12/19/09
Help me do what I need to do
Posted: Dec 19, 2009 5:22 PM
  Click to see the message monospaced in plain text Plain Text   Click to reply to this topic Reply

I am a programmer and my math skills are weak.

I want to draw an arrow. I know the start and end points of the arrow.

I need to draw the arrow head which will be made up of three points
Point 1 is the end point which I already know

Point 2 and 3 would be a 45 degree angles a certain distance away from the end point. What is the magical math formula to calculate what points 2 and 3 are?



Point your RSS reader here for a feed of the latest messages in this topic.

[Privacy Policy] [Terms of Use]

© Drexel University 1994-2014. All Rights Reserved.
The Math Forum is a research and educational enterprise of the Drexel University School of Education.