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index.php
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<!DOCTYPE html>
<html>
<head>
<link rel="stylesheet" href='./styles/style.css'>
<script src="https://ajax.googleapis.com/ajax/libs/jquery/3.4.1/jquery.min.js"></script>
<script src='./scripts/index.js'></script>
</head>
<body>
<h1>lp_solve_online v0.7</h1>
<!-- <h3>NOTICE AND WARNING: </h3>
<p> This web app is still in its TESTING stages and currently receiving only SMALL amounts of support. However, LP
problems can be solved, where the results/answers are displayed in the [Results] section
(Press the [Result] button to see.). It is recommended that you check with the actual lp_solve program or a
spreadsheet model.
</p> -->
<?php
$arr = ['run' => 'Run', 'download' => 'Download', 'upload' => 'Upload', 'help' => 'Help'];
foreach ($arr as $id => $display) {
echo "<button id=$id class='display-button'>$display</button>";
}
?>
<br />
<div>
<?php
$arr = ['source' => 'Source', 'matrix' => 'Matrix', 'result' => 'Result'];
foreach ($arr as $id => $display) {
echo "<button id=$id class='tab-button display-button'>$display</button>";
};
?>
</div>
<div id='result-dash'>
<?php
$arr = [
'objective-button' => 'Objective',
'constraints-button' => 'Constraints',
'sensitivity-button' => 'Sensitivity'];
foreach ($arr as $id => $display) {
echo "<button id=$id class='result-tab display-button'>$display</button>";
};
echo "<button id='download-report' class='display-button'>Download Report</button>"
?>
</div>
<div hidden id='matrix-config'>
<div>
<?php
$VAR = 1;
$RESTRICT = 2;
echo "<span>Variables</span><input type='number' min=1
value=$VAR id='variable-count' class='counter-mod'>";
echo "<span>Constraints</span><input type='number' min=0
value=$RESTRICT id='constraint-count' class='counter-mod'>";
echo '<button id="reset-button">Reset</button>';
echo '<button id="parse-matrix">Parse Matrix</button>'
?>
</div>
<?php
echo '<table id="lp-matrix" border="1">
<tbody id="matrix-body">';
echo '<tr id="variable-names"><td>Variable Name(s)</td>';
for ($i = 0; $i < $VAR; $i++) {
echo '<td><input type="text" class="matrix-input"/></td>';
}
echo '</tr>';
echo '<tr id="objective-function"><td>Optimize</td>';
for ($i = 0; $i < $VAR; $i++) {
echo '<td><input type="number" class="matrix-input"/></td>';
}
echo '<td><select id="optimal-goal">
<option> max </option>
<option> min </option>
<option> toValue </option>
</select>
<span id="target-goal-value" hidden><input type="text" /></span>
</td>';
echo '</tr>';
for ($i = 0; $i < $RESTRICT; $i++) {
echo '<tr class="constraint-equations">';
echo '<td>Constraint</td>';
for ($j = 0; $j < $VAR; $j++) {
echo '<td><input type="number" class="matrix-input"/></td>';
}
echo '<td><select>
<option> <= </option>
<option> >= </option>
<option> = </option>
<option> > </option>
<option> < </option>
</select></td>';
echo '<td><input type="number" class="matrix-input"/></td>';
echo '</tr>';
}
echo '</tbody>
</table>'
?>
</table>
</div>
<textarea id='textspace' class='text-display'></textarea>
<!-- Matrix Input -->
<b>Log</b>
<textarea id='log' class='text-display' readonly></textarea>
<h2>Version 0.7.0 Changes</h2>
<ul>
<li>Declare for declarations by using `for variable = start_value to end_value: <i>expression</i>;`.</li>
<li>Declare variable names by using `set variable = value;`.</li>
<li>Declare summations by using `sum [variable = start_value to end_value] (expression);`.</li>
</ul>
<h2>Future Features: </h2>
<ul>
<li>Constraints and Limit Analysis</li>
<li>Use an alternative lp_solve library or compile the lp_solve binary in the server</li>
<li>Interactive Builder for Transportation, Minimum Cost, Maximum Flow, and Shortest Path Problems</li>
</ul>
<p>This web app is inspired by the lp_solve5.5.2.5 IDE.</p>
<h2>Dependencies:</h2>
<p>The web app connects to a backend server that uses the javascript-lp-solve/jsLPSolver dependency</p>
<p>javascript-lp-solve/jsLPSolver: <a
href='https://github.com/JWally/jsLPSolver'>https://github.com/JWally/jsLPSolver<a></p>
<p>Github repository of this app: <a
href='https://github.com/ayang4114/lp_solve_online_dev'>https://github.com/ayang4114/lp_solve_online_dev</a></p>
</body>
</html>