The sign: Foamy or bubbly urine. What it means: You could have kidney disease. When your kidneyâs filtering units arenât working properly, that can lead to a build-up of protein in your urine. The protein then creates a foamy appearance when it hits the water in the toilet.
This gives us a point in the x1-x2 or phase plane that we can plot. Doing this for many values of t will then give us a sketch of what the solution will be doing in the phase plane. A sketch of a particular solution in the phase plane is called the trajectory of the solution.
trajectory (trÉdÊektÉri ) The trajectory of a moving object is the path that it follows as it moves. ...the trajectory of an artillery shell. The trajectory of something such as a person's career is the course that it follows over time. ...a relentlessly upward career trajectory.