Algèbre
Introduction aux matrices
Introduction aux matrices Avant de commencer la résolution des équations, je vais rapidement introduire le calcul matriciel. Les tables peuvent à tout moment être représentées sous forme de matrice. On peut dire qu’une matrice est une forme de […]
Java
Number of Occurrences
The following Java Code generates random numbers. Put them in an array and prints the number of times each one occurs in the Array. Only generated numbers will be listed. import java.util.Random;public class Histograms […]
Geometrie analytique
Distance entre une droite et un point
Distance entre une droite et un point Dans beaucoup de cas, nous aurons besoin de trouver la plus courte distance entre une droite et un point extérieur à cette droite. Cette distance n’est autre que la […]
Algebra
Proportions and scientific notations
Proportions and scientific notations Before discussing proportions, let’s revisit the . Percent: Usually we see fractions where the numerator is . This is mainly the case of decimal fractions and some other common fractions. We […]
Android
Simple Trigo Calculator
The simple Trigo Calculator was designed with the trigonometry functions in mind. The following functions can be calculated in normal mode: sin(x), cos(x), tan(x), sinh(x), cosh(x), tanh(x). In SHIFT mode we get the inverse functions: […]
Algebra
Exercise 3_20
Find the solution of: Solution: Let’s square the two sides:We get: Adding similar terms we get: Multiplying both sides by Let’s square both sides another time: Divide by 2: Let’s factor:The equality is true if […]
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