introduction to numbers

Complex analysis: introduction to imaginary numbers

by
Analyse complexe : introduction aux nombres imaginaires

IN BRIEF Complex analysis: field 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

Introduction to integers, decimals, and rational numbers

by
Introduction aux nombres entiers, décimaux et rationnels

IN BRIEF Relative integers: Positive or negative, noted ℤ. Set ℕ: Contains all the natural numbers, included in ℤ. Rational numbers: Quotient of a relative integer and a non-zero integer, noted ℚ. Irrational numbers: Cannot be written in the form of a ratio of integers. Decimal numbers: A subset of rational numbers. Fractions and decimals: … Read more