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**MAT244 Math--Lectures / How can I decide what type of the local phase portrait is**

« **on:**December 05, 2014, 05:22:42 PM »

firstly, if the linear system I solved is center, how can I decide the locally linear system is center or spiral?

secondly, if the linear system I solved is two equal real eigenvalue, how can I decide wether it is node or spiral points?

I did the problem on the text book, in the answer it just said it is center or spiral, undetermined, do we need to write the exact type in final?

secondly, if the linear system I solved is two equal real eigenvalue, how can I decide wether it is node or spiral points?

I did the problem on the text book, in the answer it just said it is center or spiral, undetermined, do we need to write the exact type in final?