User talk:66.215.233.181

Welcome!
Hello, and welcome to Wikipedia! Thank you for your contributions, such as the ones you made to Lyapunov function. I hope you like the place and decide to stay.

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I hope that you, as a Wikipedian, decide to continue contributing to our project: an encyclopedia of human knowledge that anyone can edit. If you need help, check out Questions, or you can  to ask for help on your talk page, and a volunteer should respond shortly. We also have an intuitive guide on editing if you're interested. By the way, please make sure to sign and date your talk page comments with four tildes (&#126;&#126;&#126;&#126;).

Happy editing! Airplaneman  ✈  20:08, 18 September 2018 (UTC)