Figure - PMC

Skip to main content

An official website of the United States government

Here's how you know

Here's how you know

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure .gov websites use HTTPS
A lock ( ) or https:// means you've safely connected to the .gov website. Share sensitive information only on official, secure websites.

View full-text article in PMC

. 2020 Dec 2;7(12):201878. doi: 10.1098/rsos.201878

Search in PMC
Search in PubMed
View in NLM Catalog
Add to search

© 2020 The Authors.

Published by the Royal Society under the terms of the Creative Commons Attribution License http://creativecommons.org/licenses/by/4.0/, which permits unrestricted use, provided the original author and source are credited.

PMC Copyright notice

Figure 1. — In this figure, we plot the best fit of the exponential model to the cumulative number of reported cases of COVID-19 in mainland China between 19 February and 1 March. We obtain χ₁ = 3.7366, χ₂ = 0.2650 and χ₃ = 615.41 with t₀ = 19 Feb. The parameter χ₃ is obtained by minimizing the error between the best exponential fit and the data.