by Jean Barbet | Jan 9, 2021 | Analysis, Functions, Non classé
From the complex exponential function, we can define a “circular exponential” function, which “wraps” the real line around the trigonometric circle, and makes it possible to rigorously define the cosine and sine trigonometric functions, which...
by Jean Barbet | Oct 25, 2020 | Geometry, Non classé, Trigonometry
The trigonometric circle allows us to define the cosine, sine and tangent of an oriented angle, and to give an interpretation through Thales’ and Pythagoras’ theorems. Introduction: trigonometry and functions Trigonometry is the study of the relationships...
