The use of differentiation and integration symbols to hypothesize the infection and mortality rates of change in many parts of the developed world. For example, which of the following Covid-19 hypotheses are worth investigating further?

Wuhan: โˆซ๐Ÿฆ โ‚โ‚‰ dx = ๐Ÿฆ‡ + c
White House: โˆซ๐Ÿฆ โ‚โ‚‰ dx = ๐Ÿ‡จ๐Ÿ‡ณ๐Ÿงซ๐Ÿงช+ c

Singapore: d/dx (๐Ÿฆ โ‚โ‚‰) = ๐Ÿ˜ทx + ๐Ÿ’€y
US: d/dx (๐Ÿคฅโ‚„โ‚… + ๐Ÿฆ โ‚โ‚‰) = ๐Ÿ˜ทหฃ + ๐Ÿ’€สธ
Corona calculus helps us to differentiate between facts and falsehoods about the coronavirus, while we integrate the latest effective preventive measures adopted by countries with low infections and deaths to control the pandemic crisis.
by MathPlus December 7, 2020
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When politicians enact unpopular, painful measures to reduce the number of Covid-19 infections and deaths, while tapping on the countryโ€™s financial reserves or borrowing money to procure as many vaccines, masks, ventilators, and PPEs for the population.
Had Donald J. Trumpโ€™s corona calculus been to minimize infection and death rather than scheme to reduce his business losses, and to maximize supplies of medical equipment and essential goods instead of benefiting himself and his cronies, he might still be serving a second term today.
by Fasters May 31, 2021
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