👉 In mathematics, "upsurge" is a mathematical concept that refers to an increase in a function or quantity. It is often used in connection with exponential growth and decay models, such as logistic growth, which describes how population size grows over time due to its ability to adapt to changes in the environment. Upsurges can occur when there are external factors (such as competition for resources) that cause an organism to grow more quickly than it would naturally do. This can lead to a rapid increase
