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The purchase includes a 3D version (interactive in Adobe Acrobat) and a B&W version that is friendlier for B&W-only printers.

APEX Calculus comprises 14 chapters; each chapter and section is listed below. This text was written to have the same basic organization as most traditional calculus textbooks.

The whole text is 972 pages long. For multiple reasons (lower cost per semester, lower weight per semester, increased likelihood of students bringing their text to class, etc.), APEX Calculus has been divided into smaller volumes in two ways. One division is intended for schools on a semester system, split roughly along traditional \"Calc 1, 2 & 3\" lines. The other division is intended for schools on the quarter system.

Extra benefits of APEX Calculus vs the expensive alternatives:

Every student can access the textbook, even before the course starts, for free.
Black-and-white paperbacks are on Amazon for $15 per volume.
Students have forever access to the textbook PDF, including future editions, for free.

Self-study learners will be excited to find that this textbook is well-maintained and is now in its 4th Edition/Version.

Teachers: register at openintro.org/register to get access to teacher-only content, including the option to get a free desk copy or access to exercise solutions. (Sorry to non-teachers, we don't currently offer exercise solutions beyond our Verified Teachers. Details on our reasoning are here.)

The 4th Edition was released in 2018.

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