1. Practical usage of complex numbers
Jiří Horáček

2. History Hero of Alexandria 1545 Girolamo Cardano – Ars Magna
1572 Rafeel Bombeli
René Descarde – La Geometrie
John Walis

3. What are complex numbers?
Definition
Algebraic form
Absolute value
Goniometric form
Euler equation
Equality of two complex numbers

4. Gauss plane and operations with complex numbers
Adding complex numbers
Subtracting complex numbers
Multiplying complex numbers
Dividing complex numbers
Square root of complex numbers
Power of complex numbers

5. Practical usage Chemistry Cartography Computers Electrical engineering
Quantum mechanics
Geophysics
Geometry
Mathematical analysis
Electromagnetism

6. Thank you for your attention