7. Differential Calculus
 Constructing Tangents
 Difference Quotient Functions
└
 Differentiable Functions
 Local Aspects
 The Basic Representation Theorem
└ Example of a locally noninjective, regular function
 Calculation Rules for Differentiable Functions
 The Derivative
 Repeatedly Differentiable Functions
 The Mean Value Theorem
 Geometric Properties of Differentiable Functions
 Extremal Problems
 Sequences of Differentiable Functions
