A few important points before I help:

The search for is more than a quest for a free file; it is a quest for a specific kind of mathematical clarity. Fulks wrote for the curious, the persistent, and the practical. In an era of glossy, expensive textbooks that often prioritize aesthetics over pedagogy, his work stands as a testament to concise, rigorous, and helpful exposition.

Amazon (3rd Edition) : Hardcover and paperback versions of the 3rd edition, published by Wiley.

Partial differentiation, multiple integrals, and vector calculus. Infinite Series: Sequences, series of constants, and power series. Vector Analysis: Coverage of vector functions and related identities. Amazon.com Editions & Availability 1st Edition (1961): Approximately 521 pages. 2nd Edition (1969): Published by Wiley, New York. 3rd Edition / Global Edition: