Explore free calculus resources and textbooks from OpenStax to enhance your understanding and excel in mathematics.

Study calculus online free by downloading Volume 3 of OpenStax's college Calculus textbook and using our accompanying online resources.

In the past few years, major earthquakes have occurred in several countries around the world. In January 2010, an earthquake of magnitude 7.3 hit Haiti....

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Study precalculus online free by downloading OpenStax's Precalculus 2e textbook and using our accompanying online resources including a precalculus study guide.

The dot product is a multiplication of two vectors that results in a scalar. In this section, we introduce a product of two vectors that generates a thi...

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The chambered nautilus is a fascinating creature. This animal feeds on hermit crabs, fish, and other crustaceans. It has a hard outer shell with many ch...