| Section 103-01: General concepts |
| 103-01-01 | function | |
| 103-01-02 | functional | |
| 103-01-03 | distribution | |
| 103-01-04 | transformation | |
| 103-01-05 | variable | |
| 103-01-06 | function of n variables | |
| 103-01-07 | functional relation | |
| 103-01-08 | inner product | |
| 103-01-09 | weighted inner product | |
| 103-01-10 | orthogonal, adj | |
| 103-01-11 | system of orthogonal functions | |
| 103-01-12 | interval | |
| 103-01-13 | end-point | |
| 103-01-14 | range | |
| Section 103-02: Means |
| 103-02-01 | mean value | |
| 103-02-02 | root-mean-square value | |
| 103-02-03 | RMS value, <for a time-dependent quantity> | |
| 103-02-04 | geometric mean value | |
| 103-02-05 | harmonic mean value | |
| Section 103-03: Distributions |
| 103-03-01 | unit step function | |
| 103-03-02 | general unit step function | |
| 103-03-03 | unit ramp | |
| 103-03-04 | signum | |
| 103-03-05 | Dirac function | |
| 103-03-06 | unit doublet | |
| Section 103-04: Integral transformations |
| 103-04-01 | Fourier transform | |
| 103-04-02 | Fourier transformation | |
| 103-04-03 | inverse Fourier transform | |
| 103-04-04 | inverse Fourier transformation | |
| 103-04-05 | Laplace transform | |
| 103-04-06 | Laplace transformation | |
| 103-04-07 | inverse Laplace transform | |
| 103-04-08 | inverse Laplace transformation | |
| 103-04-09 | Z-transform | |
| 103-04-10 | Z-transformation | |
| 103-04-11 | wavelet | |
| 103-04-12 | continuous wavelet transform | |
| Section 103-05: Functions of one variable, mainly time-dependent quantities |
| 103-05-01 | steady state | |
| 103-05-02 | transient, adj | |
| 103-05-03 | oscillating, adj | |
| 103-05-04 | oscillation | |
| 103-05-05 | forced oscillation | |
| 103-05-06 | free oscillation | |
| 103-05-07 | resonance | |
| 103-05-08 | cycle | |
| 103-05-09 | periodic, adj | |
| 103-05-10 | aperiodic, adj | |
| 103-05-11 | relaxation oscillation | |
| 103-05-12 | instantaneous value | |
| 103-05-13 | local maximum | |
| 103-05-14 | local maximum value | |
| 103-05-15 | global maximum value | |
| 103-05-16 | local minimum | |
| 103-05-17 | local minimum value | |
| 103-05-18 | global minimum value | |
| 103-05-19 | peak-to-valley value | |
| 103-05-20 | pulse | |
| 103-05-21 | pulse train | |
| 103-05-22 | pulsed quantity | |
| 103-05-23 | damped oscillation | |
| 103-05-24 | damping coefficient | |
| 103-05-25 | logarithmic decrement | |
| 103-05-26 | time constant | |
| 103-05-27 | synchronous, adj | |
| Section 103-06: Periodic quantities |
| 103-06-01 | period | |
| 103-06-02 | frequency | |
| 103-06-03 | alternating, adj | |
| 103-06-04 | symmetrical alternating quantity | |
| 103-06-05 | direct component | |
| 103-06-06 | alternating component | |
| 103-06-07 | pulsating, adj | |
| 103-06-08 | positive half-wave | |
| 103-06-09 | negative half-wave | |
| 103-06-10 | rectified value | |
| 103-06-11 | pulsating factor | |
| 103-06-12 | RMS-ripple factor | |
| 103-06-13 | peak-ripple factor | |
| 103-06-14 | form factor | |
| 103-06-15 | peak factor | |
| 103-06-16 | beat | |
| 103-06-17 | beat frequency | |
| 103-06-18 | hertz | |
| Section 103-07: Sinusoidal quantities |
| 103-07-01 | sinusoidal, adj | |
| 103-07-02 | amplitude | |
| 103-07-03 | angular frequency | |
| 103-07-04 | phase | |
| 103-07-05 | initial phase | |
| 103-07-06 | phase difference | |
| 103-07-07 | phase lead | |
| 103-07-08 | phase lag | |
| 103-07-09 | in phase, adj | |
| 103-07-10 | in quadrature, adj | |
| 103-07-11 | in opposition, adj | |
| 103-07-12 | instantaneous complex value | |
| 103-07-13 | complex amplitude | |
| 103-07-14 | phasor | |
| 103-07-15 | space phasor | |
| 103-07-16 | complex angular frequency | |
| 103-07-17 | growth coefficient | |
| 103-07-18 | Fourier series | |
| 103-07-19 | fundamental component | |
| 103-07-20 | reference fundamental component | |
| 103-07-21 | fundamental frequency | |
| 103-07-22 | reference fundamental frequency | |
| 103-07-23 | fundamental factor | |
| 103-07-24 | harmonic order | |
| 103-07-25 | harmonic component | |
| 103-07-26 | harmonic frequency | |
| 103-07-27 | interharmonic component | |
| 103-07-28 | interharmonic frequency | |
| 103-07-29 | sub-harmonic component | |
| 103-07-30 | sub-harmonic frequency | |
| 103-07-31 | harmonic content | |
| 103-07-32 | total harmonic factor | |
| Section 103-08: Probability |
| 103-08-01 | random, adj | |
| 103-08-02 | probability | |
| 103-08-03 | random variable | |
| 103-08-04 | random function | |
| 103-08-05 | stationary random function | |
| 103-08-06 | ergodic, adj | |
| 103-08-07 | probability distribution | |
| 103-08-08 | distribution function | |
| 103-08-09 | probability density | |
| 103-08-10 | expectation, <of a random variable> | |
| 103-08-11 | variance, <of a random variable> | |
| 103-08-12 | variance, <in statistics> | |
| 103-08-13 | standard deviation | |
| 103-08-14 | p-fractile, <of a probability distribution> | |
| 103-08-15 | median | |
| 103-08-16 | variation coefficient | |
| Section 103-09: Spectrum |
| 103-09-01 | frequency band | |
| 103-09-02 | bandwidth | |
| 103-09-03 | spectrum | |
| 103-09-04 | power spectrum | |
| 103-09-05 | power spectral density | |
| 103-09-06 | correlation function | |
| 103-09-07 | autocorrelation function | |
| 103-09-08 | crosscorrelation function | |
| Section 103-10: Mathematical concepts related to waves |
| 103-10-01 | wave | |
| 103-10-02 | waveform | |
| 103-10-03 | sinusoidal wave | |
| 103-10-04 | wavefront | |
| 103-10-05 | direction of propagation | |
| 103-10-06 | plane wave | |
| 103-10-07 | longitudinal wave | |
| 103-10-08 | transverse wave | |
| 103-10-09 | wave vector | |
| 103-10-10 | wavelength | |
| 103-10-11 | wavenumber | |
| 103-10-12 | angular wavenumber | |
| 103-10-13 | phase velocity | |
| 103-10-14 | dispersive, adj | |
| 103-10-15 | group velocity | |
| 103-10-16 | forward wave | |
| 103-10-17 | backward wave | |
| 103-10-18 | propagation coefficient | |
| 103-10-19 | attenuation coefficient | |
| 103-10-20 | phase coefficient | |
| 103-10-21 | geometric optics | |
| 103-10-22 | incident wave | |
| 103-10-23 | diffracted wave | |
| 103-10-24 | refracted wave | |
| 103-10-25 | reflected wave | |
| 103-10-26 | coherence | |
| 103-10-27 | phase interference | |
| 103-10-28 | standing wave | |
| 103-10-29 | node, <of a standing wave> | |
| 103-10-30 | antinode | |