e/Elementary Calculus: An Infinitesimal Approach

Information
has gloss	eng: Elementary Calculus: An Infinitesimal approach (the subtitle is sometimes given as An approach using infinitesimals) is a textbook by H. Jerome Keisler. The subtitle alludes to the infinitesimal numbers of Abraham Robinson's non-standard analysis.
lexicalization	eng: Elementary Calculus: An Infinitesimal Approach
instance of	e/Controversy