Q:
# What is single variable calculus?

Single variable calculus covers derivative and integral functions that contain one variable. Functions that contain two or more variables are a part of multivariable calculus.

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Single variable calculus can be used in calculating arc length, surface area, work, energy and force. While differentiation and integration are the main functions covered in single variable calculus, it also makes heavy use of limits, continuity, sequences, series, complex numbers and differential equations. Studies of differentiation cover rules for solving the equation, such as the product, quotient and chain rules. Techniques on integration used in single variable calculus include trigonometric substitution and partial fraction decomposition.

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