I can investigate the solutions of systems of differential equations.
mixing help (how to deal with pure water - I made a mistake in class)
editwhy eigen stuff is showing up in this chapter
edithow to do phase plane plots in Mathematica
Basic command:
StreamPlot[{{a,b},{c,d}}.{x,y}, {x, -2, 2}, {y, -2, 2}]
editstreamplots using webMathematica
edit$$y''-sin(y)=0$$
edit