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30 lines
901 B
30 lines
901 B
2 months ago
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<?php
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use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
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use PhpOffice\PhpSpreadsheet\Spreadsheet;
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require __DIR__ . '/../../Header.php';
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$category = 'Engineering';
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$functionName = 'BESSELI';
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$description = 'Returns the modified Bessel function, which is equivalent to the Bessel function evaluated for purely imaginary arguments';
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$helper->titles($category, $functionName, $description);
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// Create new PhpSpreadsheet object
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$spreadsheet = new Spreadsheet();
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$worksheet = $spreadsheet->getActiveSheet();
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for ($n = 0; $n <= 5; ++$n) {
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for ($x = 0; $x <= 5; $x = $x + 0.25) {
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Calculation::getInstance($spreadsheet)->flushInstance();
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$worksheet->setCellValue('A1', "=BESSELI({$x}, {$n})");
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$helper->log(sprintf(
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'%s = %f',
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$worksheet->getCell('A1')->getValue(),
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$worksheet->getCell('A1')->getCalculatedValue()
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));
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}
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}
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