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| revprev | Admin | Jun 14'24 at 22:54 | −222 | ||
| revcur | Bot | (Created page with "<div class="d-none"><math> \newcommand{\NA}{{\rm NA}} \newcommand{\mat}[1]{{\bf#1}} \newcommand{\exref}[1]{\ref{##1}} \newcommand{\secstoprocess}{\all} \newcommand{\NA}{{\rm NA}} \newcommand{\mathds}{\mathbb}</math></div> A long needle of length <math>L</math> much bigger than 1 is dropped on a grid with horizontal and vertical lines one unit apart. Show that the average number <math>a</math> of lines crossed is approximately <math display="block"> a = \frac{4L}\...") | Jun 9'24 at 3:26 | +482 |