If you get an error message ignore it.

Click on the two ENTER buttons below. Two wave pulses should appear. Then click on FORWARD.

f(x,t)	g(x,t)
Amplitude Wavelength Frequency Phase Shift Click Here to Reverse Direction Speed	Amplitude Wavelength Frequency Phase Shift Click Here to Reverse Direction Speed
You may alter the equations of the waves  directly in the boxes below. f(x,t)= g(x,t)=

The animation is a straightforward illustration of the nature of superposition. The two wave pulses pass through each other. When they meet their amplitudes add up, but after they pass through one another they return to their original form.

Now enter the following equation for g(x,t):

-7*exp(-.5*(x+(-.25*t+2))^2)

RESET the demo and click FORWARD.