Algebra
The Art of Solving problems
In the following example, professor Alfred explains how we can save time by using the “poet’s” way, an elegant method, instead of what we call “Peasant’s” method.Most of us hurry up when faced with a […]
Aires du cercle et du triangle
Aires du cercle et du triangle Périmètre d’un triangle: The périmètre d’un triangle est la somme de ses trois côtés. Sur la figure qui suit nous avons: est le du triangle.
Analytic geometry
Inscribed Circles from the Lounge
Inscribed circles, from the lounge Problem 23: A circle of center has been inscribed in a square ABCD, of side 16 meters. In the following figure, a smaller circle of center and tangent of Circle […]
Trigonometry
Spherical trigonometry
Spherical trigonometry The spherical trigonometry is the branch of spherical geometry which deals with spherical triangles defined by great circles on the sphere. It allows us to calculate the trigonometric functions of the sides and […]
Algebra
Matrix Calculation
Introduction to matrices Introduction to Matrices Before we start solving multiple equations, I have to introduce the matrix calculations. Tables can be represented by what we call matrices. A matrix is a type of rectangular […]
Calcul Différentiel et Intégral
Théorie des Limites
Théorie des Limites Notion de limite: Un nombre est la de quand tend vers , si le nombre peut s’approcher infiniment de en choisissant suffisamment proche ou égal à . Dans ce cas nous aurons […]
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