Transcendental numbers and their properties

Les nombres transcendants et leurs propriétés

IN BRIEF Transcendental numbers: Numbers that are not roots of any non-zero polynomial. Rational numbers: Numbers that cannot be expressed as a fraction. Property of being transcendental: Corresponds to the absence of a polynomial with integer coefficients that would annul it. Notable examples: π and e are common examples of transcendental numbers. Algebraic numbers: Contrast … Read more

Complex analysis: introduction to imaginary numbers

Analyse complexe : introduction aux nombres imaginaires

IN BRIEF Complex analysis: area of study of complex numbers. Definition of a complex number: z = a + bi with a and b real, i imaginary unit. Visualization of complex numbers in the plane with coordinates. Operations on complex numbers: addition, subtraction, multiplication, etc. Basic concepts related to imaginary numbers and their importance in … Read more

Prime numbers and their importance in mathematics

Les nombres premiers et leur importance en mathématiques

IN BRIEF Prime number: a natural integer divided only by 1 and itself. Examples of prime numbers: 2, 3, 5, 7, 11, 13. Importance in arithmetic: every number is uniquely decomposed into products of prime numbers. Cryptography: prime numbers ensure the security of online data. Historical developments, notably by Eratosthenes and his sieve. Essential role … Read more