The Number "e"

The book invites listeners into the hidden world of the most mysterious mathematical constant, e. Beginning with a striking display of the number’s first 100,000 digits, it treats the cascade of figures not as a mere novelty but as a portal to the ideas that have shaped calculus, finance, and natural growth. As the narration unfolds, you’ll hear why this irrational constant captures the imagination of mathematicians and engineers alike.

From there the story turns to the machines and minds that coaxed those digits from raw computation. Using a Cray Y‑MP supercomputer in the late 1970s, a team applied Brent’s multiple‑precision routines—first summing an alternating series for 1/e, then inverting the result—to push accuracy to unprecedented levels. The account balances technical detail with the human drive to measure the infinite, offering a vivid snapshot of an era when raw processing power first met the lofty ambitions of pure mathematics.