Created
December 2, 2015 20:36
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obtener funcion lineal a partir de dos puntos.
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| var Punto = function(x,y){ | |
| return { x: x, y: y }; | |
| } | |
| function obtenerRecta(p1, p2){ | |
| var x1 = p1.y; | |
| var y1 = p1.y; | |
| var x2 = p2.x; | |
| var y2 = p2.y; | |
| var difY = y1 - y2; | |
| var difX = -x2 + x1; | |
| var a = difY / difX; | |
| var b = y1 - a * x1; | |
| return function Recta(x){ | |
| return a * x + b; | |
| }; | |
| } | |
| // example: | |
| var f = obtenerRecta({ | |
| x:0, | |
| y:0 | |
| }, { | |
| x:1, | |
| y:2 | |
| }) | |
| f(2); // returns f(2) = 4 | |
| f(3); // returns f(3) = 6 |
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