Unformatted text preview: steps: (1) Draw lines through the origin determined by a and b . (2) Along these lines, draw arrows going towards the origin if Î» < 0, and away from the origin if Î» > 0. (3) Using the relations A a = Î» a âˆ’ Î¼ b A b = Î¼ a + Î» b spiral from b to a if Î¼/Î» < 0, and from a to b if Î¼/Î» > 0. If Î» is positive, we say that the direction Â±eld is a nodal spiral . If Î» is negative, we say that the direction Â±eld is a spiral sink . 1...
View Full Document
- Spring '09
- Derivative, Î¾, Homogeneous Systems, nodal spiral