Stefan Verhoeven sverhoeven
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| <div id="container"></div> |
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| <head> | |
| <title>Example React application</title> | |
| <script src="https://unpkg.com/react@16/umd/react.development.js" crossorigin></script> | |
| <script src="https://unpkg.com/react-dom@16/umd/react-dom.development.js" crossorigin></script> | |
| <script src="https://unpkg.com/babel-standalone@6/babel.min.js"></script> | |
| </head> |
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| importScripts('newtonraphson.js'); | |
| onmessage = function(message) { | |
| if (message.data.type === 'CALCULATE') { | |
| createModule().then(({NewtonRaphson}) => { | |
| const tolerance = message.data.payload.tolerance; | |
| const finder = new NewtonRaphson(tolerance); | |
| const initial_guess = message.data.payload.initial_guess; | |
| const root = finder.solve(initial_guess); | |
| postMessage({ |
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| <!doctype html> | |
| <html lang="en"> | |
| <head> | |
| <title>Web worker example</title> | |
| <script> | |
| const worker = new Worker('worker.js'); | |
| worker.postMessage({ | |
| type: 'CALCULATE', | |
| payload: { tolerance: 0.001, initial_guess: -4.0 } | |
| }); |
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| <html> | |
| <head> | |
| <!-- Load WebAssembly module --> | |
| <script type="text/javascript" src="newtonraphson.js"></script> | |
| </head> | |
| <body> | |
| <div> | |
| Function root is approximately at x = | |
| <span id="answer"/> | |
| </div> |
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| #include <emscripten/bind.h> | |
| #include "newtonraphson.hpp" | |
| using namespace emscripten; | |
| EMSCRIPTEN_BINDINGS(newtonraphson) { | |
| class_<NewtonRaphson>("NewtonRaphson") | |
| .constructor<float>() | |
| .function("solve", &NewtonRaphson::solve) | |
| ; |
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| #include <iostream> | |
| #include <iomanip> | |
| #include "newtonraphson.hpp" | |
| int main() { | |
| float initial_guess = -4; | |
| float tolerance = 0.001; | |
| NewtonRaphson newtonraphson(tolerance); | |
| float root = newtonraphson.solve(initial_guess); |
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| #ifndef H_NEWTONRAPHSON_HPP | |
| #define H_NEWTONRAPHSON_HPP | |
| class NewtonRaphson { | |
| public: | |
| NewtonRaphson(float tolerance_in); | |
| float solve(float initial_guess); | |
| private: | |
| float tolerance; | |
| }; |
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| #include "newtonraphson.hpp" | |
| #include "problem.hpp" | |
| #include <cmath> | |
| // Define the constructor method of NewtonRaphson instances | |
| NewtonRaphson::NewtonRaphson(float tolerance_in) : tolerance(tolerance_in) {} | |
| // Define the 'solve' method of NewtonRaphson instances | |
| float NewtonRaphson::solve(float initial_guess) { | |
| float x = initial_guess; |
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| // An example equation | |
| float equation(float x) { | |
| return 2 * x * x * x - 4 * x * x + 6; | |
| } | |
| // Derivative of the above equation | |
| float derivative(float x) { | |
| return 6 * x * x - 8 * x; | |
| } |