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....

Study calculus online free by downloading volume 1 of OpenStax's college Calculus textbook and using our accompanying online resources.

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One common application of calculus is calculating the minimum or maximum value of a function. For example, companies often want to minimize production costs or maximize revenue.

The exponential function is perhaps the most efficient function in terms of the operations of calculus. The exponential function, 𝑦 = 𝑒 𝑥, y = e x, is its own derivative and its own integral.