Play with the values to see the different wave forms (speed, wavelength, frequency, etc).  The interference examples shown in class are below: Standing Wave f(x,t) = 2.5*sin(2.0*x + 8.0*t) g(x,t) = 2.5*sin(2.0*x - 8.0*t) Beat f(x,t) = 3.5*sin(8.5*x - 25.0*t) g(x,t) = 2.5*sin(9.5*x - 5.0*t) Walking Waves f(x,t) = 4.0*sin(8.0*x - 10.0*t) g(x,t) = 2.0*sin(10.5*x + 10.0*t)