Files
openlayers/src/ol/math.js
2013-03-03 14:47:25 +01:00

58 lines
1.0 KiB
JavaScript

goog.provide('ol.math');
/**
* @param {number} x X.
* @return {number} Hyperbolic cosine of x.
*/
ol.math.cosh = function(x) {
return (Math.exp(x) + Math.exp(-x)) / 2;
};
/**
* @param {number} x X.
* @return {number} Hyperbolic cotangent of x.
*/
ol.math.coth = function(x) {
var expMinusTwoX = Math.exp(-2 * x);
return (1 + expMinusTwoX) / (1 - expMinusTwoX);
};
/**
* @param {number} x X.
* @return {number} Hyperbolic cosecant of x.
*/
ol.math.csch = function(x) {
return 2 / (Math.exp(x) - Math.exp(-x));
};
/**
* @param {number} x X.
* @return {number} Hyperbolic secant of x.
*/
ol.math.sech = function(x) {
return 2 / (Math.exp(x) + Math.exp(-x));
};
/**
* @param {number} x X.
* @return {number} Hyperbolic sine of x.
*/
ol.math.sinh = function(x) {
return (Math.exp(x) - Math.exp(-x)) / 2;
};
/**
* @param {number} x X.
* @return {number} Hyperbolic tangent of x.
*/
ol.math.tanh = function(x) {
var expMinusTwoX = Math.exp(-2 * x);
return (1 - expMinusTwoX) / (1 + expMinusTwoX);
};