id	author	title	date	pages	extension	mime	words	sentence	flesch	summary	cache	txt
cbi-29	Bartlett, Jonathan	Simplifying and Refactoring Introductory Calculus	2018	11	.pdf	application/pdf	7296	429	63	Or, it can be com- bined with other formulas and differential formulas (say, the relationship of x to some variable t) to algebraically ac- complish a change of variables. 7 Partial Derivatives/Differentials This treatment of differentials also leads to a very straight- forward way of defining partial differentials and derivatives.	cache/cbi-29.pdf	txt/cbi-29.txt