A: amperes
B: magnetic field
C: capacitance, coulombs, celcius, constant of integration, 100 in roman numerals
D: 500 in roman numerals
E: energy, electric field
F: force, fahrenheit
G: universal gravitational constant, orthocenter, gibbs free energy
H: orthocenter, enthalpy, henries
I: rotational inertia, current, incenter, identity matrix, 1 in roman numerals
J: joules
K: kelvin
L: angular momentum, inductance, 50 in roman numerals
M: mega-, 1000 in roman numerals
N: newtons, set of natural numbers
O: circumcenter
P: power
Q: heat, charge, set of rational numbers
R: resistance, set of real numbers, radius
S: entropy
T: temperature
U: potential energy
V: voltage, volts, 5 in roman numerals
W: watts
X: 10 in roman numerals
Y:
Z: set of integers
a: acceleration, semi-major axis
b: semi-minor axis
c: specific heat capacity, speed of light, hypotenuse
d: derivative, distance
e: euler's number, elementary charge
f: frequency, default function letter
g: grams, acceleration due to gravity on Earth, second function letter
h: plank's constant
i: sqrt(-1), default looping variable name, horizontal unit vector
j: vertical unit vector
k: kilo-, upwards unit vector
l: length
m: mass, milli-, AIME fraction answer extraction numerator
n: AIME fraction answer extraction denominator
o:
p: momentum
q: charge
r: default vector function letter, radius
s: arc length parameter
t: time
u: u-sub letter
v: velocity
w:
x: default variable name, horizontal axis
y: secondary variable name, vertical axis
z: third variable name, upwards axis
α: radiation
β: radiation
γ: radiation
Δ: change
ε: permittivity, very small number
ζ: zeta function
η:
θ: angle
ι:
κ: curvature, dielectric constant
λ: wavelength, lambda functions
μ: friction, permeability
ν: p-adic function
ξ:
ο:
π/Π: repeated product, pi
ρ: resistivity, volume density
σ/Σ: repeated sum, area density
τ: torque, time constant, 2pi
υ:
Φ: euler totient, flux, golden ratio
χ:
ψ:
ω/Ω: ohms, angular velocity
א: infinities
∅: empty set