Signals & EE
Fourier, Laplace, Bode, filters, and phasors
Phasor math
Rect ↔ polar AC
RC low-pass
H(jω) Bode data
1-pole Bode
|H| and phase
1st-order Laplace
e^{-at} and unit-gain step
Tone spectrum
Sinusoid DFT bins
Nyquist check
fs vs fmax
Series impedance
R + jωL + 1/jωC
Reflection Γ
Γ = (Z-Z0)/(Z+Z0)
2nd-order plant step
Under/critical/over-damped y(t)
AM modulation
s(t)=(1+m cos)cos