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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
a2+b2=c2
Logarithms
logxy=logx+logy
Calculus
∂f∂t=limx→∞=f(t+h)−f(t)h
Newton’s Law of Gravity
Fgravity=Gm1m2r2
Complex Numbers
i2=−1
Euler’s Formula for Polyhedra
Normal Distribution
Wave Equation
Fourier Transform
Navier-Stokes Equation
Maxwell’s Equations
∇⋅E=0∇⋅H=0
∇×E=−1c∂H∂t∇×H=−1c∂E∂t
Second Law of Thermodynamics
dS≥0
Relativity
E=mc2
Schrodinger’s Equation
Information Theory
H=−∑p(x)+logp(x)
Chaos Theory
xt+1=kxt(1−xi)