Airy functions
The Biphase Mark Code encoding
An analogue multiplier using diodes
An analogue multiplier using MOS
Modified Bessel function, 1nd kind
Bessel function, 1st kind
Modified Bessel function, 2nd kind
Bessel function, 2nd kind
Comparing different electronic filters
Error function
Complementary Error function
1-D Discrete cosine transform|DCT compared to the DFT
Plot of Fresnel integrals
Gamma function
Plot of Hermite polynomials
Hysteresis sharp curve
Plot of Laguerre polynomials
Plot of Legendre polynomials
The Negative impedance converter circuit
SPDIF and AES/EBU protocol
Real circuit for a Super diode
Basic circuit for a Super diode
Transfer function of an improved super diode
The picture is used in Negative impedance converter article
a = 1, b = 2 (1:2)
a = 3, b = 2 (3:2)
a = 3, b = 4 (3:4)
a = 5, b = 4 (5:4)
a = 5, b = 6 (5:6)
a = 9, b = 8 (9:8)
Notch filter