ABSTRACT

6.1.1 x ˙   =   x   −   y   y ˙   =   1   −   e x https://s3-euw1-ap-pe-df-pch-content-public-p.s3.eu-west-1.amazonaws.com/9780429493003/15deefc7-84a6-4935-a96b-0bf4a637cb76/content/eq270.tif"/>