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224 | 224 | \FloatBarrier% |
225 | 225 | \endhsection% |
226 | 226 | % |
227 | | -\hsection{LIU Hui's Method and the Approximation of~$\numberPi$}% |
| 227 | +\hsection{LIU Hui's Method for the Approximation of~$\numberPi$}% |
228 | 228 | \label{sec:approximatePiLiuHui}% |
229 | 229 | % |
230 | 230 | \begin{figure}% |
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248 | 248 | \def\liuhuistf{\ensuremath{{\color{liuhui-s24-color}s_{24}}}}% |
249 | 249 | % |
250 | 250 | Let us now come to a more serious example. |
251 | | -I am not good at mathematics, but I really like mathematics anyway, so we will go with a mathematics example: approximating~\numberPi. |
| 251 | +I am not good at mathematics, but I still really like mathematics anyway, so we will go with a mathematics example: approximating~\numberPi. |
252 | 252 | The number~\numberPi\ is the ratio of the circumference of a circle and its diameter. |
253 | 253 | A we already mentioned before in \cref{sec:float}, it is transcendental, a never-ending and never-repeating sequence of digits. |
254 | 254 | We can compute it to a certain precision, e.g., as the \pythonilIdx{float} constant \pythonilIdx{pi} with value \pythonil{3.141592653589793}. |
255 | 255 | But we can never really write it down. |
256 | 256 |
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257 | | -Well, we I say \inQuotes{we can compute it}, then the question \inQuotes{How?} immediately arises. |
258 | | -One particularly ingenious answer was given by the Chinese mathematician LIU Hui~(刘徽) somewhere in the third century~AD~\cite{OR2003LH} in his commentary to the famous Chinese mathematics book \emph{Jiu Zhang Suanshu}~(九章算术)~\cite{OR2003LH,SCL1999TNCOTMACAC,S1998LHATFGAOCM,D2010AALHOCAS,C2002LFLHADWTDM}. |
259 | | -In \cref{fig:liuHuiCircle}, we show how~\numberPi, i.e., the ratio of the circumference and the diameter of a circle can be approximated. |
260 | | -The idea of LIU Hui~(刘徽) was to inscribe regular~$e$\nobreakdashes-gons with an increasing number~$e$ of edges into a circlem such that the corners of the $e$\nobreakdashes-gons lie on the circle. |
| 257 | +Well, when I say \inQuotes{we can compute it}, then the question \inQuotes{How?} immediately arises. |
| 258 | +One particularly ingenious answer was given by the Chinese mathematician LIU Hui~(刘徽) somewhere in the third century~\pgls{CE}~\cite{OR2003LH,Y2024COACMMLHFHTIOMACE} in his commentary to the famous Chinese mathematics book \emph{Jiu Zhang Suanshu}~(九章算术)~\cite{OR2003LH,SCL1999TNCOTMACAC,S1998LHATFGAOCM,D2010AALHOCAS,C2002LFLHADWTDM}. |
| 259 | +In \cref{fig:liuHuiCircle}, we show how~\numberPi\ can be approximated based on the idea of LIU Hui~(刘徽): |
| 260 | +By inscribing regular~$e$\nobreakdashes-gons with an increasing number~$e$ of edges into a circlem such that the corners of the $e$\nobreakdashes-gons lie on the circle. |
261 | 261 |
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262 | 262 | We start with a hexagon~($e=6$) where the radius~\liuhuir\ is equal to the radius of the circle. |
263 | 263 | All the $e$~edges~\liuhuiss\ of this hexagon then have length~\liuhuir\ as well. |
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