Fig. 1.

Equation-dense articles receive fewer citations from nontheoretical articles but not from other theoretical articles. The graphs show the mean (±SEM) number of citations by nontheoretical papers (A) and theoretical papers (B) for cited articles of differing length and number of equations per page (for the main text and appendixes combined). For illustration purposes only, the number of equations per page was binned into the ranges shown on the x axis; note that the data were not binned for the statistical analysis.