modify sinusoidal_wave_animation.py to show standing wave; its not perfect: can't disable alpha slider--need to fix so when select to show standing wave, alpha slider is disabled after its value is set to 0
modify sinusoidal_wave_animation.py to show standing wave; its not perfect: can't disable alpha slider--need to fix so when select to show standing wave, alpha slider is disabled after its value is set to 0

gregnordin/ECEn360_Winter2016,gregnordin/ECEn360_Winter2016