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17 Equations
In his book, In Pursuit of the Unknown: 17 Equations That Changed the World, Ian Stewart discusses each equation engagingly and practically…
Pythagorean Theorem
$a^2 + b^2 = c^2$
Logarithms
$log{xy} = log{x} + log{y}$
Calculus
Newton’s Law of Gravity
Complex Numbers
$i^2=-1$
Euler’s Formula for Polyhedra
Normal Distribution
Wave Equation
Fourier Transform
Navier-Stokes Equation
Maxwell’s Equations
Second Law of Thermodynamics
$dS\geq0$
Relativity
$E=mc^2$
Schrodinger’s Equation
Information Theory
$H=-\sum p(x) + log{p(x)}$
Chaos Theory
$x_{t+1} = kx_t(1-x_i)$
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