Summary

• phasors
• Wiener's experiment
• Adding two waves of different ω

• Adding waves of different v
• phase & group velocities
• dispersion applet
• alternate applet
• WaveAdd applet
• in-class 7.19


• Intro to Fourier Series
• Adding waves of many ω
• Sine & cosine as a basis set
• periodic functions
• Fourier series applet