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GET /hyperkitty/api/list/[email protected]/email/NVXTZZHCEEUULSMM4QQH3IW3JDDOKKKT/?format=api
{ "url": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/NVXTZZHCEEUULSMM4QQH3IW3JDDOKKKT/?format=api", "mailinglist": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/?format=api", "message_id": "[email protected]", "message_id_hash": "NVXTZZHCEEUULSMM4QQH3IW3JDDOKKKT", "thread": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/thread/4YAQ6WJ52QA46R3IFNDAGYUYTF4CMT3I/?format=api", "sender": { "address": "oz6bl (a) fern.dk", "mailman_id": "04618ff65b0f46ef85bcf7601470d05e", "emails": "https://mailman.amsat.org/hyperkitty/api/sender/04618ff65b0f46ef85bcf7601470d05e/emails/?format=api" }, "sender_name": "Bent OZ6BL", "subject": "[amsat-bb] Re: use of PI in amsat development practice", "date": "2010-03-14T17:01:14Z", "parent": "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/4YAQ6WJ52QA46R3IFNDAGYUYTF4CMT3I/?format=api", "children": [ "https://mailman.amsat.org/hyperkitty/api/list/[email protected]/email/MT2TUH5XMLDV7XHJKO7P26COQUFT3PDU/?format=api" ], "votes": { "likes": 0, "dislikes": 0, "status": "neutral" }, "content": "On 2010-03-14 17:22, Samudra Haque wrote:\n> Hi, Pi-Day is today (3/14/2010) also we just sprang forward by 1 hour.\n> (http://www.cnn.com/2010/TECH/03/12/pi.day.math/index.html?hpt=C2) and\n> apparently it's also Einsteins Birthday!\n> (http://en.wikipedia.org/wiki/Albert_Einstein)\n>\n> Wow a lot of key dates here.\n>\n> \nUnfortunately Pi-day can not be celebrated in Europe as we have no month\n14 over here. ;-)\n> My question is: in amateur satellite design/planning how many\n> significant digits are used to calculate the value of pi? Is there a\n> significant difference in results between (4 decimal poinits) and (3\n> decimal points).\n>\n> In professional space missions, such as NASA, what is the practice\n> with regards to use of Pi ? Are there any published standards?\n>\n> Using Excel, is there any way to generate a large range of pi ?\n>\n> \nI have often used the expression\n\npi = 4 * arctan(1)\n\nto get Pi with full machine accuracy in a program.\n\n73, Bent\n\n", "attachments": [] }