# Analytical Methods in Engineering I

**Academic Year 2024/2025**- Teacher:

**RITA TRACINA'**

## Expected Learning Outcomes

The aim of the course is to provide students with basic concepts of the differential calculus for functions with one variable, to make the student able to elaborate main topics critically, to improve reasoning skills.

## Course Structure

Lectures and exercises in the classroom.

## Detailed Course Content

**Elements of set theory. Numerical sets. Topology elements**

Cartesian product. Definition of function. Special functions. Succession. Composed function. Injective and surjective functions. Inverse function. Internal, external, border, accumulation, isolated points. The extended line R *.

**Limits**

Real functions of real variable. Positivity and symmetries. Limited functions. Monotone functions. Definition of limit. Theorem of uniqueness of the limit. Right and left limit. Theorem of the permanence of the sign. Operations with function limits. Infinitesimal and infinite. Asymptotes. Limit of a succession. The number "e", some notable limits. Cauchy convergence criterion.

**Continuous functions**

Definition of continuity. Operations on continuous functions. Points of discontinuity. Discontinuity of monotonic functions. Basic properties of continuous functions over a range. Theorem of existence of zeros and intermediate values. First and second Weierstrass theorem. Elementary functions: rational functions; algebraic, exponential and logarithmic functions; hyperbolic functions and their inverse; trigonometric functions and their inverse.

**Differential calculus**

Definition of derivative. Derivability and continuity. Right derivative, left derivative. Operations with derivatives. Differential. Local extremes. Fermat's theorem. Theorem of Lagrange. Consequences of the Lagrange theorem. De L'Hôpital theorems and applications. Taylor's formula. Concave and convex functions. Determination of the nature of stationary points. Determining the graph of a function.

**Integrals of functions of one variable**

Definition of integral according to Riemann and geometric meaning. Classes of integrable functions. Properties of the integral: additivity; homogeneity; monotony; average theorem; additivity to the integration interval. Integral function. The fundamental theorem of integral calculus. Undefined integral. Rules for integration by decomposition, by parts and by substitution. Improper integrals.

**Numerical series**

Definition of numerical series and first properties. Cauchy criterion. Series with non-negative terms. Convergence criteria. Convergence and absolute convergence. Leibniz criterion. Operations on the series.

## Textbook Information

1) C.D. Pagani, S. Salsa - Analisi Matematica I - Zanichelli

2) S. Salsa, A. Squellati - Esercizi di Analisi matematica vol. 1- Zanichelli

3) G. Zwirner, Esercizi di Analisi Matematica I, CEDAM

## Course Planning

Subjects | Text References | |
---|---|---|

1 | Elementi di teoria degli insiemi. Insiemi numerici. Elementi di topologia. | 1 |

2 | L'operazione di limite | 1 |

3 | Funzioni continue | 1 |

4 | Calcolo differenziale | 1 |

5 | Integrali di funzioni di una variabile | 1 |

6 | Serie numeriche | 1 |