The convergence of infinite integral of higher mathematics in college mathematical analysis, such as 0 is not a defect, why should it be divided into 0- 1 and 1- infinity? There are also question marks. If 0 is not deficient (when m≥0), this integral is an ordinary integral and must converge. This topic focuses on the case that 0 is deficient.

Here, in the blue circle, it is the criterion to judge the convergence and divergence of the integral when 0 is a loss (when m < 0). Only when 0

To sum up, if the integral exists, m >- 1.