Submissions from johndcook.com

		Impedance and Triangular Numbers (johndcook.com)
		5 points by ibobev 67 days ago \| past
		Text case changes the size of QR codes (johndcook.com)
		178 points by ibobev 67 days ago \| past \| 52 comments
		Cross Ratio (johndcook.com)
		2 points by ibobev 67 days ago \| past
		Why and how Bitcoin uses Merkle trees (johndcook.com)
		2 points by ibobev 69 days ago \| past
		Freshman's Dream (johndcook.com)
		2 points by ibobev 69 days ago \| past
		Physical Keys and Encryption Keys (johndcook.com)
		1 point by ibobev 69 days ago \| past
		How to mentally calculate logarithms base 2 (johndcook.com)
		1 point by ibobev 69 days ago \| past
		An ancient generalization of the Pythagorean Theorem (johndcook.com)
		2 points by ibobev 69 days ago \| past
		Physical Keys and Encryption Keys (johndcook.com)
		4 points by pavel_lishin 70 days ago \| past \| 1 comment
		How blocks are chained in a blockchain (johndcook.com)
		16 points by ibobev 72 days ago \| past
		Spacing the Circles on the Smith Chart (johndcook.com)
		2 points by ibobev 73 days ago \| past
		987654321 / 123456789 (johndcook.com)
		3 points by ibobev 73 days ago \| past
		How blocks are chained in a blockchain (johndcook.com)
		68 points by tapanjk 73 days ago \| past \| 32 comments
		987654321 / 123456789 (johndcook.com)
		637 points by ColinWright 74 days ago \| past \| 107 comments
		Random Spherical Coordinates (johndcook.com)
		2 points by ibobev 74 days ago \| past
		Spacing the Circles on the Smith Chart (johndcook.com)
		2 points by tzury 74 days ago \| past
		How to make a Smith chart (johndcook.com)
		169 points by tzury 76 days ago \| past \| 33 comments
		Generating Random Points in Colorado (johndcook.com)
		3 points by ibobev 78 days ago \| past
		Turning trig identities into Fibonacci identities (johndcook.com)
		1 point by ibobev 79 days ago \| past
		Distribution of Correlation (johndcook.com)
		2 points by ibobev 79 days ago \| past
		Ode to Fisher's Transform (johndcook.com)
		1 point by ibobev 80 days ago \| past
		Distribution of Coordinates on a Sphere (johndcook.com)
		2 points by ibobev 80 days ago \| past
		Extrapolating Quantum Factoring (johndcook.com)
		4 points by cbzbc 81 days ago \| past
		Quality Metrics (johndcook.com)
		1 point by ibobev 81 days ago \| past
		Experiences with GPT-5-Codex (johndcook.com)
		3 points by ibobev 83 days ago \| past
		Random Samples from a Tetrahedron (johndcook.com)
		2 points by ibobev 84 days ago \| past
		Inverting Matrices and Bilinear Functions (johndcook.com)
		1 point by ibobev 86 days ago \| past
		Generate random points inside a sphere (johndcook.com)
		1 point by ibobev 86 days ago \| past
		Ethereum's consensus layer elliptic curve (johndcook.com)
		2 points by ibobev 87 days ago \| past
		GPT-5 for AI-assisted discovery (johndcook.com)
		1 point by ibobev 89 days ago \| past
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