From the reviews "This is a reprint of the original edition of Lang's 'A First Course in Calculus', which was first published in 1964...The treatment is 'as rigorous as any mathematician would wish it'...[The exercises] are refreshingly simply stated, without any extraneous verbiage, and at times quite challenging...There are answers to all the exercises set and some supplementary problems on each topic to tax even the most able." --Mathematical Gazette