41 lines
874 B
JavaScript
41 lines
874 B
JavaScript
!function() {
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var ex = {};
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/* Requires:
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* - point.js
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* - fx.js
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* - fx_view.js
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*/
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ex.box_pt = {x: 700, y: 450};
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/* target function f(x)
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* x :: number
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* returns :: number
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*/
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ex.target_fn = function(x) {
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return x * x * (x - 0.6);
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} /*target_fn*/
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/* derivative f'(x) of fx.target_fn
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* x :: number
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* returns :: number
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*/
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ex.target_deriv_fn = function(x) {
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return x * (3 * x - 1.2);
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} /*target_deriv_fn*/
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/* w :: Window */
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ex.start = function(w)
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{
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fx_view.init_sequence(ex.target_fn, ex.target_deriv_fn,
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ex.box_pt, 200.0 /*scale_factor*/,
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-1.66 /*lo_x*/, +2.0 /*hi_x*/,
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-1.66*ex.box_pt.y/ex.box_pt.x /*lo_y*/,
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+2.0*ex.box_pt.y/ex.box_pt.x /*hi_y*/,
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200 /*n_pt*/);
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fx_view.draw("#frame");
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}
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this.ex = ex;
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}();
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