Complex numbers are numbers that consist of two parts — a real number and an imaginary number. Complex numbers are the building blocks of more intricate math, such as algebra. They can be ...

Figure 4. A snapshot, in time, of two complex numbers whose exponents, and thus their phase angles, change with time. The notion of negative frequency is often troubling to engineers who've spent so ...

In circuit analysis complex numbers are represented using shorthand called phasor notation as shown below. Setting the angular frequency to 1/RC, the steady state problem above is solved quickly using ...

FAQ How do “imaginary” numbers represent real-world quantities? Part of the confusion over complex numbers—particularly as they relate to DSP— comes from a lack of understanding over their role in the ...