295 lines
8.4 KiB
JavaScript
295 lines
8.4 KiB
JavaScript
function getColor(theme, atomNum) {
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if(theme == "category") {
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var color = colorChart[theme][info[theme][atomNum]];
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} else if(theme == "melting" || theme == "boiling") {
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if(info[theme]["K"][atomNum] == null) { // if value is null
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color = "#41484D";
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} else {
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// Value - Min(all values) / Max(all values) - Min(all values)
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var ratio = (info[theme]["K"][atomNum] - ranges[theme]["K"][0]) / ranges[theme]["K"][2];
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var color = gradientColor(colorChart[theme][0],colorChart[theme][1], ratio); // high, low, ratio
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}
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} else {
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if(info[theme][atomNum] == null) { // if value is null
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color = "#41484D";
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} else {
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// Value - Min(all values) / Max(all values) - Min(all values)
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var ratio = (info[theme][atomNum] - ranges[theme][0]) / ranges[theme][2];
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var color = gradientColor(colorChart[theme][0],colorChart[theme][1], ratio);
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}
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}
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return color;
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}
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function changeColor(hex, amt) {
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hex = hex.slice(1);
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var num = parseInt(hex,16);
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var r = (num >> 16) + amt;
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if (r > 255) r = 255;
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else if (r < 0) r = 0;
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var b = ((num >> 8) & 0x00FF) + amt;
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if (b > 255) b = 255;
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else if (b < 0) b = 0;
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var g = (num & 0x0000FF) + amt;
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if (g > 255) g = 255;
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else if (g < 0) g = 0;
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var final = (g | (b << 8) | (r << 16)).toString(16);
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// Adds preceeding zeros
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while (final.length < 6) {final = "0" + final};
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return "#" + final;
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}
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function gradientColor(hex1, hex2, ratio) {
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// Splits hex1 into 3 pieces (2 char each)
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var hex1 = hex1.replace("#", "").match(/.{1,2}/g);
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// Converts each one into int
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for (var i = 0; i <= 2; i++) {
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hex1[i] = parseInt(hex1[i], 16);
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}
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// Does above process for hex2
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var hex2 = hex2.replace("#", "").match(/.{1,2}/g);
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for (var i = 0; i <= 2; i++) {
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hex2[i] = parseInt(hex2[i], 16);
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}
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// Creates end table for finished hex parts
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var donetable = [];
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// Averages each of the three parts between hex1 and hex2
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for (var i = 0; i <= 2; i++) {
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// Weighted average to get exact gradient necessary and not average
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// Round to prevent weird hex decimal shenanigans
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var val = Math.round((ratio) * hex1[i] + (1 - ratio) * hex2[i]);
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val = val.toString(16);
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// Adds 0 to solve math automatically removing preceeding zeroes
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if (val.length === 1) {
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val = "0" + val;
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}
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donetable[i] = val;
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}
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// Rejoins hex and adds #
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done = "#" + donetable.join("");
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return done;
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}
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function get(name) {
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// Condensed format for document.getX
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var elements = [];
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if(document.getElementsByClassName(name).length > 0) {
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elements = document.getElementsByClassName(name);
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}
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else if(document.getElementsByTagName(name).length > 0) {
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for(var a = 0; a < document.getElementsByTagName(name).length; a++) {
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elements.push(document.getElementsByTagName(name)[a]);
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}
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}
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else if(document.getElementById(name) != null) {
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elements.push(document.getElementById(name));
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}
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if(elements.length == 1) {
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return elements[0];
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} else { return elements; }
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}
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function deleteElem (id) {
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var element = document.getElementById(id);
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elem.parentNode.removeChild(element);
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}
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function deleteCookie(setting) {
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// Sets expiration date to past date, deleting cookie automatically
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document.cookie = setting+"=; expires=Thu, 01 Jan 2000 00:00:00 GMT";
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}
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function getRanges() {
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// Format of ranges is [Min, Max, Range]
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for(var i = 1; i < choices[1].length; i++) { // Possible data types are options except for category
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var option = choices[1][i];
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if(i == 7 || i == 8) {
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ranges[option] = {};
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for(var j = 0; j < 3; j++) { // Units for temperatures
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var unit = choices[3][j];
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var min = Math.min.apply(null,info[option][unit]);
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var max = Math.max.apply(null,info[option][unit]);
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var range = max - min;
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ranges[option][unit] = [min,max,range];
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}
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} else {
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var min = Math.min.apply(null,info[option]);
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var max = Math.max.apply(null,info[option]);
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var range = max - min;
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ranges[option] = [min,max,range];
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}
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}
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}
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function balanceEquation(reactant, product) {
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var compounds = [];
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var vary = [];
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var matrix = [];
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var freeMatrix = [];
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// Create array from inputs.
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formulaStr = reactant + "+" + product;
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compounds = formulaStr.replace(/\s/g,"").split("+");
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// Create element matrix.
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for(var i = 0; i < compounds.length; i++) {
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var counter = 0;
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var indexes = [];
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currString = compounds[i];
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compounds[i] = [compounds[i]];
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while(counter < currString.length) {
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if(currString[counter] == currString[counter].toUpperCase() && isNaN(currString[counter])) {
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indexes.push(counter);
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}
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counter += 1;
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}
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indexes.push(currString.length);
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for(var j = 0; j < indexes.length-1; j++) {
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element = currString.substring(indexes[j],indexes[j+1]);
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elementNoNum = element.replace(/[0-9]/g,"");
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if(vary.indexOf(elementNoNum) == -1) {
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vary.push(elementNoNum);
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}
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if(element.search(/[0-9]/g) != -1) {
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compounds[i].push([elementNoNum,parseInt(element.replace(/\D/g,""))]);
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} else {
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compounds[i].push([elementNoNum,1]);
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}
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}
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}
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for(var x = 0; x < vary.length; x++) {
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matrix[x] = [];
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for(var y = 0; y < compounds.length; y++) {
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var pushed = false;
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for(var z = 1; z < compounds[y].length; z++) {
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if(compounds[y][z][0] == vary[x]) {
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matrix[x].push(compounds[y][z][1]);
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pushed = true;
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break;
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}
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}
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if(!pushed) {
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matrix[x].push(0);
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}
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}
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}
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// Get Reduced Row Echelon Form.
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var lead = 0;
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var rows = matrix.length;
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var columns = matrix[0].length;
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for(var a = 0; a < rows; a++) {
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var breakOut = false;
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if(columns <= lead) {
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break;
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}
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var e = a;
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while(matrix[e][lead] === 0) {
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e++;
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if(rows == e) {
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e = a;
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lead++;
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if(columns == lead) {
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breakOut = true;
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break;
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}
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}
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}
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if(breakOut) break;
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var tmp = matrix[e];
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matrix[e] = matrix[a];
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matrix[a] = tmp;
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var val = matrix[a][lead];
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for(var b = 0; b < columns; b++) {
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matrix[a][b] /= val;
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}
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for(var c = 0; c < rows; c++) {
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if (c == a) continue;
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val = matrix[c][lead];
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for(var d = 0; d < columns; d++) {
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matrix[c][d] -= val * matrix[a][d];
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}
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}
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lead++;
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}
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// Extract free matrix.
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for(var f = 0; f < matrix.length-1; f++) {
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freeMatrix.push(matrix[f][matrix[f].length-1]);
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}
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freeMatrix.push(1);
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// Multiply all to integers.
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var power = 1;
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var testPow = 1;
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for(var g = 0; g < freeMatrix.length; g++) {
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var testInt = freeMatrix[g] * Math.pow(10,testPow);
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while(!(testInt == parseInt(testInt))) {
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testPow += 1;
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}
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if(testPow > power) {
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power = testPow;
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}
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}
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for(var h = 0; h < freeMatrix.length; h++) {
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freeMatrix[h] *= Math.pow(10,power);
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}
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// Get GCD.
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var gcd = freeMatrix[0];
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for(var u = 0; u < freeMatrix.length-2; u++) {
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gcd = getGCD(gcd, freeMatrix[u+1]);
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}
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// Get final answers.
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for(var w = 0; w < freeMatrix.length; w++) {
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freeMatrix[w] /= gcd;
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freeMatrix[w] = Math.abs(freeMatrix[w]);
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if(freeMatrix[w] != 1) {
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freeMatrix[w] += compounds[w][0];
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} else {
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freeMatrix[w] = compounds[w][0];
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}
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}
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return freeMatrix;
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}
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function getGCD(a,b) {
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if(!b) return a;
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return getGCD(b, a % b);
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} |