#книга Хэйвилл Дж. «Замечательные математические кривые»
Математика для фанатов (и только для них, тут не будет кода или приложений) уровня студентов первых курсов. Я ожидал некоторую энциклопедию по всем кривым. Здесь скорее набор обзорных глав, каждая посвящена конкретной теме: эллиптические кривые, Безье, заполняющие пространство. Написано интересно, есть классные истории (некоторые ещё ниже напишу), вот на картинке одна из них.
#книга Хэйвилл Дж. «Замечательные математические кривые»
Математика для фанатов (и только для них, тут не будет кода или приложений) уровня студентов первых курсов. Я ожидал некоторую энциклопедию по всем кривым. Здесь скорее набор обзорных глав, каждая посвящена конкретной теме: эллиптические кривые, Безье, заполняющие пространство. Написано интересно, есть классные истории (некоторые ещё ниже напишу), вот на картинке одна из них.
Right now the digital security needs of Russians and Ukrainians are very different, and they lead to very different caveats about how to mitigate the risks associated with using Telegram. For Ukrainians in Ukraine, whose physical safety is at risk because they are in a war zone, digital security is probably not their highest priority. They may value access to news and communication with their loved ones over making sure that all of their communications are encrypted in such a manner that they are indecipherable to Telegram, its employees, or governments with court orders. In the past, it was noticed that through bulk SMSes, investors were induced to invest in or purchase the stocks of certain listed companies. Investors took profits on Friday while they could ahead of the weekend, explained Tom Essaye, founder of Sevens Report Research. Saturday and Sunday could easily bring unfortunate news on the war front—and traders would rather be able to sell any recent winnings at Friday’s earlier prices than wait for a potentially lower price at Monday’s open. But Telegram says people want to keep their chat history when they get a new phone, and they like having a data backup that will sync their chats across multiple devices. And that is why they let people choose whether they want their messages to be encrypted or not. When not turned on, though, chats are stored on Telegram's services, which are scattered throughout the world. But it has "disclosed 0 bytes of user data to third parties, including governments," Telegram states on its website. The gold standard of encryption, known as end-to-end encryption, where only the sender and person who receives the message are able to see it, is available on Telegram only when the Secret Chat function is enabled. Voice and video calls are also completely encrypted.
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