Stepping into the world of calculus is like passing from one dimension to another. The first dimension is made up of simple math, geometry, and algebra. The more complex dimension is called Calculus. **Pre-Calculus 12** is the second half of the bridge between simple math and Calculus. You’ll come to understand polynomial and rational functions, function operations, exponents and logarithms, trigonometric functions and equations, and more. The journey may sound daunting, but using our interactive animation and video lessons, we walk with you—at your pace—as you cross that bridge to the new dimension.