Analytic geometry
Distance between a line and a point
Distance between a line and a point In many cases, we will need to find the shortest distance between a line a point. This distance is on the perpendicular of the line. This means that we […]
Algèbre
Selections
Selections Un échantillon des types d’exercices que nous entendons résoudre, pour montrer comment des simples problèmes peuvent paraître difficiles. Problème 1: Résoudre en
Algebra
Absolute value
Absolute value The best way to try to understand the absolute-value is to look at the number line.If we take any number on the number line, its distance from zero is its absolute value. The […]
Algebra
Solved Problems
Solved Problems A stranger asked about his age replied : If I have to reach 100 years, the half of the of the of my age is 12 years more than the of the of […]
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: […]
Calculus
Implicit differentiation
Implicit differentiation Sometimes we are presented with equations in two variables, and that may have multiple solutions for in terms of or for in terms of . The solutions found will be implicitly defined by […]
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