proportions of pins used in bridges
Purchase of this book includes free trial access to www.million-books.com where you can read more than a million books for free. This is an OCR edition with typos. Excerpt from book: which integrated will give the equation of the curve. This is a lineal differential equation of the fourth order, and when j -- is called p, where p = / j-j- it will lead to the general formula : there being e = 2.7182818. y = Ai
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