I make short, to-the-point online math tutorials. I struggled with math growing up and have been able to use those ...

Abstract: To obtain chaotic systems with good properties to help chaos based image encryption, this paper first study the condition under which quadratic functions can be used as pseudo-random ...

In this math tutorial, we look at a common mistake when dealing with horizontal shift in quadratic function graphing. We explore how to correctly interpret the direction of transformations of ...

Dagre is a JavaScript library that makes it easy to lay out directed graphs on the client-side. For more details, including examples and configuration options, please ...

Abstract: The quadratic Lyapunov function-based method for consensus analysis of discrete-time single-integrator multiagent systems (MASs) in general time-varying directed networks is not well ...