ext/html"/><meta name="DC.Rights" content="This book is not copyrighted in the United States. If you live elsewhere please check the laws of your country before downloading this book."/><meta name="DC.Identifier" content="https://www.gutenberg.org/ebooks/12345"/><link href="test.css" rel="stylesheet" type="text/css"/></head><body><div class="body"><div id="ch11" class="div1 last-child"><div class="divHead"><h2 id="xd37e1846" class="main">Mathematical Formula</h2></div><div class="divBody"><p id="xd37e1847" 