for rogue waves to form so often, they must follow a non linear system, instead of the linear constructive interference system scientists once thought it was to explain these waves. What does it mean to be a non linear equation?

Shows a map of olivia's trip to a coffee shop. she gets on her bike at loomis and then rides south 0.8mi to broadway. she turns east onto broadway, rides 0.8 mi to where broadway turns, and then continues another 1.2mi to the shop.