Well, technically, you need spherical trigonometry, not linear algebra. For nearby points, linear algebra will be a good approximation, so perhaps that's a good enough answer for him. But if you want an app to face you toward Mecca, for example, that won't be enough.
A good navigation text will be helpful in that case. -- You received this message because you are subscribed to the Google Groups "Android Developers" group. To post to this group, send email to [email protected] To unsubscribe from this group, send email to [email protected] For more options, visit this group at http://groups.google.com/group/android-developers?hl=en
