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<?php
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$float_num = 0.0456;
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$exponent_part = ( floor(log($float_num, 2)) + 1 );
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$mantissa_part = ( $float_num * pow(2, -$exponent_part) );
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echo 'Floating value : '.$float_num."\n";
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echo 'Exponent part : '.$exponent_part."\n";
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echo 'Mantissa part : '.$mantissa_part."\n";
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?>
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