Submissions from johndcook.com

		Text case changes the size of QR codes (johndcook.com)
		2 points by ibobev 5 hours ago \| past \| discuss
		Cross Ratio (johndcook.com)
		1 point by ibobev 5 hours ago \| past \| discuss
		Why and how Bitcoin uses Merkle trees (johndcook.com)
		2 points by ibobev 1 day ago \| past \| discuss
		Freshman's Dream (johndcook.com)
		2 points by ibobev 1 day ago \| past \| discuss
		Physical Keys and Encryption Keys (johndcook.com)
		1 point by ibobev 1 day ago \| past \| discuss
		How to mentally calculate logarithms base 2 (johndcook.com)
		1 point by ibobev 1 day ago \| past \| discuss
		An ancient generalization of the Pythagorean Theorem (johndcook.com)
		2 points by ibobev 1 day ago \| past \| discuss
		Physical Keys and Encryption Keys (johndcook.com)
		3 points by pavel_lishin 2 days ago \| past \| 1 comment
		How blocks are chained in a blockchain (johndcook.com)
		16 points by ibobev 4 days ago \| past \| discuss
		Spacing the Circles on the Smith Chart (johndcook.com)
		2 points by ibobev 5 days ago \| past \| discuss
		987654321 / 123456789 (johndcook.com)
		3 points by ibobev 5 days ago \| past \| discuss
		How blocks are chained in a blockchain (johndcook.com)
		68 points by tapanjk 5 days ago \| past \| 32 comments
		987654321 / 123456789 (johndcook.com)
		633 points by ColinWright 6 days ago \| past \| 107 comments
		Random Spherical Coordinates (johndcook.com)
		2 points by ibobev 6 days ago \| past \| discuss
		Spacing the Circles on the Smith Chart (johndcook.com)
		2 points by tzury 6 days ago \| past \| discuss
		How to make a Smith chart (johndcook.com)
		169 points by tzury 8 days ago \| past \| 33 comments
		Generating Random Points in Colorado (johndcook.com)
		3 points by ibobev 10 days ago \| past \| discuss
		Turning trig identities into Fibonacci identities (johndcook.com)
		1 point by ibobev 12 days ago \| past \| discuss
		Distribution of Correlation (johndcook.com)
		2 points by ibobev 12 days ago \| past \| discuss
		Ode to Fisher's Transform (johndcook.com)
		1 point by ibobev 13 days ago \| past \| discuss
		Distribution of Coordinates on a Sphere (johndcook.com)
		2 points by ibobev 13 days ago \| past \| discuss
		Extrapolating Quantum Factoring (johndcook.com)
		4 points by cbzbc 13 days ago \| past \| discuss
		Quality Metrics (johndcook.com)
		1 point by ibobev 14 days ago \| past
		Experiences with GPT-5-Codex (johndcook.com)
		3 points by ibobev 16 days ago \| past
		Random Samples from a Tetrahedron (johndcook.com)
		2 points by ibobev 16 days ago \| past
		Inverting Matrices and Bilinear Functions (johndcook.com)
		1 point by ibobev 19 days ago \| past
		Generate random points inside a sphere (johndcook.com)
		1 point by ibobev 19 days ago \| past
		Ethereum's consensus layer elliptic curve (johndcook.com)
		2 points by ibobev 19 days ago \| past
		GPT-5 for AI-assisted discovery (johndcook.com)
		1 point by ibobev 22 days ago \| past
		More on Carmichael (johndcook.com)
		1 point by ibobev 22 days ago \| past
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