Literary notes about Differential (AI summary)
The term "differential" has been employed with a surprising range of meanings in literature, largely centered on its technical application in mathematics and physics yet occasionally venturing into more figurative territory. In many texts, it is used in the context of calculus and differential equations—appearing in discussions of exact differentials, the integration of equations of various orders, and even in the representation of geometrical and physical phenomena ([1], [2], [3], [4], [5], [6], [7], [8], [9], [10], [11]). Its mathematical use extends further to mechanical contexts, such as in references to differential wheels and screws ([12], [13], [14]). Meanwhile, some authors have played with the term’s connotations; for instance, Sinclair Lewis contrasts a "generator" with a "differential" in a more colloquial sense ([15]), and Ralph Waldo Emerson employs it metaphorically to describe nature's subtle capacity to measure divine sentiment ([16]). This versatility illustrates not only the technical precision the word has acquired but also its potential as a literary device to bridge scientific precision with broader, imaginative expression.