Trigonometry
Graphs of Elementary Trigonometric Functions
Graphs of Elementary Trigonometric Functions To see the functions in a clear manner, we’ll graph the trigonometric functions on the same graph as their reciprocals This means that the curve and the curve are graphed […]
Geometry
Quadrilaterals
Quadrilaterals A quadrilateral is a polygon that has four sides. The line segment sides lie within a single plane. Quadrilaterals with non-coplanar sides are called “SKEW”. PARALLELOGRAM: A parallelogram is a quadrilateral in which […]
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 […]
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 […]
Analytic geometry
Al-Kashi, Heron,Bretschneider’s, Brahmagupta’s and Coolidge formulas
The Bretscheiner’s formula helps find the area of a non-cyclic quadrilateral, that cannot be inscribed in a circle, using only side lengths and possibly one angle measure or one diagonal length. After the Bretschneider’s formula, […]
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: […]
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