Interactivity: Logarithms

This activity calculates log base 10 according to values entered for x and y.

Interactivity: Powers of Ten

This activity calculates the powers of ten.

Interactivity: Calculating Gain or Loss

This activity allows the user  to enter the final voltage and the reference voltage to get gain in decibels.

Interactivity: Using Decibels

This activity allows the user to enter a value for the decibels and a value for the reference power resulting in the final power.

Interactivity: Fourier Synthesis

In this activity, the user will draw sine waves by selecting the amplitude, frequency, and phase of each.

Interactivity: Noise: White and Narrowband

This activity allows the user to enter a value for amplitude and a value for frequency and then generate the white noise and narrowband noise.