Principles of Physics IV
In the context of physics, 'e' represents the base of the natural logarithm, approximately equal to 2.71828. This mathematical constant is significant in many areas, including calculus, complex analysis, and particularly in the formulation of exponential growth and decay processes. It plays a critical role in understanding relationships involving energy, mass, and the speed of light as captured in Einstein's famous equation, $$E = mc^2$$.
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