Using a copy of [SPICE] a free circuit simulation application, I have created several sine wave sources ... of the main frequency called harmonics. When building a square wave only odd harmonics ...

Turns out, adding in the frequency domain looks like multiplication in the time domain, so we actually want to multiply the two signals together. In general, a good math model for a sine wave is: ...

The greater the amplitude of a wave then the more energy it is carrying. Don't get confused with this quantity frequency. It is not a distance travelled by waves, nor is it a speed, although it is ...

You need to know about these quantities used in waves - what they mean, the symbols used for them and the units used to measure them. Don't get confused with this quantity frequency. It is not a ...