3-Number Theory-Number Types-Pi
Leibniz formula
pi = 4 * (1/1 - 1/3 + 1/5 - 1/7 + ...) {Leibniz formula}.
Wallis product
pi = 2 * (2/1) * (2/3) * (4/3) * (4/5) * (6/5) * (6/7) * ... pi/2 is product {Wallis's product} {Wallis' product} {Wallis product} of terms (2 * r / (2*r - 1)) * (2 * r / (2*r + 1)), from r = 1 to infinity.
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3-Number Theory-Number Types
Drawings
Drawings
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Date Modified: 2022.0225