<p>This is the official requirement from the math department:</p>
<p>Calculus Single Variable (special UM version or any 5th edition) Fall</a> 2008 Textbooks</p>
<p>I thought that the same book is used for both 156 and 255. But 255 is multivariable, right? I noticed Stewart also has a book out just called "Calculus". Is this single variable and multivariable all in one? Since I'm taking 255, I might as well get a book that covers both courses. Also, what about the early transcendentals version of calculus? They seem to be cheaper on eBay than the plain "Calculus" books.</p>