В среду после выборов я рассказывал про векторные поля (по программе попало), а там как раз conservative vector fields. А еще можно нарисовать векторное поле < -y, x >, и получить... хм, неоднозначную картинку, которая много где запрещена. Ясное дело, от такого я удержался, ну и говорил больше gradient vector fields вместо conservative.
(для любителей строгих определений - это конечно разные понятия, и про conservative надо говорить про интегралы по гомотопичным друг другу путям; то есть, gradient = точные формы, conservative = замкнутые)
В среду после выборов я рассказывал про векторные поля (по программе попало), а там как раз conservative vector fields. А еще можно нарисовать векторное поле < -y, x >, и получить... хм, неоднозначную картинку, которая много где запрещена. Ясное дело, от такого я удержался, ну и говорил больше gradient vector fields вместо conservative.
(для любителей строгих определений - это конечно разные понятия, и про conservative надо говорить про интегралы по гомотопичным друг другу путям; то есть, gradient = точные формы, conservative = замкнутые)
There was another possible development: Reuters also reported that Ukraine said that Belarus could soon join the invasion of Ukraine. However, the AFP, citing a Pentagon official, said the U.S. hasn’t yet seen evidence that Belarusian troops are in Ukraine. The message was not authentic, with the real Zelenskiy soon denying the claim on his official Telegram channel, but the incident highlighted a major problem: disinformation quickly spreads unchecked on the encrypted app. The news also helped traders look past another report showing decades-high inflation and shake off some of the volatility from recent sessions. The Bureau of Labor Statistics' February Consumer Price Index (CPI) this week showed another surge in prices even before Russia escalated its attacks in Ukraine. The headline CPI — soaring 7.9% over last year — underscored the sticky inflationary pressures reverberating across the U.S. economy, with everything from groceries to rents and airline fares getting more expensive for everyday consumers. If you initiate a Secret Chat, however, then these communications are end-to-end encrypted and are tied to the device you are using. That means it’s less convenient to access them across multiple platforms, but you are at far less risk of snooping. Back in the day, Secret Chats received some praise from the EFF, but the fact that its standard system isn’t as secure earned it some criticism. If you’re looking for something that is considered more reliable by privacy advocates, then Signal is the EFF’s preferred platform, although that too is not without some caveats. "Like the bombing of the maternity ward in Mariupol," he said, "Even before it hits the news, you see the videos on the Telegram channels."
from ms
