Trig of inverse trig

John D. CookHN
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A curious trig identity

John D. CookHN
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Formal determination of deidentification under California law

John D. CookHN
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Giant Steps

John D. CookHN
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Tritone substitution

John D. CookHN
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Bitcoin hash rate, mining difficulty, and competition

John D. Cook
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Exahash, Zettahash, Yottahash

John D. CookHN
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10,000,000th Fibonacci number

John D. CookHN
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Computing big, certified Fibonacci numbers

John D. CookHN
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Orbital hodograph | Plotting velocity of Keplerian orbit

John D. CookHN
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Race between primes of the forms 4k + 1 and 4k + 3

John D. CookHN
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Wagon’s algorithm in Python

John D. Cook
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Finding a square root of -1 mod p

John D. Cook
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Finding a non-square mod p

John D. Cook
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Expressing a prime as the sum of two squares

John D. CookHN
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Aligning one matrix with another

John D. CookHN
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Computing large Fibonacci numbers

John D. CookHN2
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Fibonacci numbers and time-space tradeoffs

John D. CookHN
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Chowla conjecture on the minimum of a cosine series

John D. CookHN
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Finding all the roots of a polynomial using the QR algorithm

John D. CookHN
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