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Reorganize code samples This introduce a helper class that should be used to log things, avoiding a lot of boilerplate code. Also all output are made in /tmp folder instead of beside the script itself. This is because there is a high chance that the folder containing the script is not writtable by webserver. So using the /tmp folder makes it more likely to works in a variety of setup.
2016-08-31 16:15:54 +00:00
<?php
Make global usage of `use` instead of FQCN Closes #78 Closes #147
2017-05-17 22:02:17 +00:00
use PhpOffice\PhpSpreadsheet\Calculation;
Reorganize code samples This introduce a helper class that should be used to log things, avoiding a lot of boilerplate code. Also all output are made in /tmp folder instead of beside the script itself. This is because there is a high chance that the folder containing the script is not writtable by webserver. So using the /tmp folder makes it more likely to works in a variety of setup.
2016-08-31 16:15:54 +00:00
require __DIR__ . '/Header.php';
?>
Fix Quadratic equation solver example (#120)
2017-03-16 15:24:43 +00:00
<form action="45_Quadratic_equation_solver.php" method="POST">
Reorganize code samples This introduce a helper class that should be used to log things, avoiding a lot of boilerplate code. Also all output are made in /tmp folder instead of beside the script itself. This is because there is a high chance that the folder containing the script is not writtable by webserver. So using the /tmp folder makes it more likely to works in a variety of setup.
2016-08-31 16:15:54 +00:00
Enter the coefficients for the Ax<sup>2</sup> + Bx + C = 0
<table border="0" cellpadding="0" cellspacing="0">
<tr><td><b>A&nbsp;</b></td>
<td><input name="A" type="text" size="8" value="<?php echo (isset($_POST['A'])) ? htmlentities($_POST['A']) : ''; ?>"></td>
</tr>
<tr><td><b>B&nbsp;</b></td>
<td><input name="B" type="text" size="8" value="<?php echo (isset($_POST['B'])) ? htmlentities($_POST['B']) : ''; ?>"></td>
</tr>
<tr><td><b>C&nbsp;</b></td>
<td><input name="C" type="text" size="8" value="<?php echo (isset($_POST['C'])) ? htmlentities($_POST['C']) : ''; ?>"></td>
</tr>
</table>
<input name="submit" type="submit" value="calculate"><br />
If A=0, the equation is not quadratic.
</form>
<?php
/** If the user has submitted the form, then we need to execute a calculation * */
if (isset($_POST['submit'])) {
if ($_POST['A'] == 0) {
echo 'The equation is not quadratic';
} else {
/* Calculate and Display the results * */
echo '<hr /><b>Roots:</b><br />';
$discriminantFormula = '=POWER(' . $_POST['B'] . ',2) - (4 * ' . $_POST['A'] . ' * ' . $_POST['C'] . ')';
Make global usage of `use` instead of FQCN Closes #78 Closes #147
2017-05-17 22:02:17 +00:00
$discriminant = Calculation::getInstance()->calculateFormula($discriminantFormula);
Reorganize code samples This introduce a helper class that should be used to log things, avoiding a lot of boilerplate code. Also all output are made in /tmp folder instead of beside the script itself. This is because there is a high chance that the folder containing the script is not writtable by webserver. So using the /tmp folder makes it more likely to works in a variety of setup.
2016-08-31 16:15:54 +00:00
$r1Formula = '=IMDIV(IMSUM(-' . $_POST['B'] . ',IMSQRT(' . $discriminant . ')),2 * ' . $_POST['A'] . ')';
$r2Formula = '=IF(' . $discriminant . '=0,"Only one root",IMDIV(IMSUB(-' . $_POST['B'] . ',IMSQRT(' . $discriminant . ')),2 * ' . $_POST['A'] . '))';
Make global usage of `use` instead of FQCN Closes #78 Closes #147
2017-05-17 22:02:17 +00:00
echo Calculation::getInstance()->calculateFormula($r1Formula) . '<br />';
echo Calculation::getInstance()->calculateFormula($r2Formula) . '<br />';
Reorganize code samples This introduce a helper class that should be used to log things, avoiding a lot of boilerplate code. Also all output are made in /tmp folder instead of beside the script itself. This is because there is a high chance that the folder containing the script is not writtable by webserver. So using the /tmp folder makes it more likely to works in a variety of setup.
2016-08-31 16:15:54 +00:00
$callEndTime = microtime(true);
$helper->logEndingNotes();
}
}