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Continued fraction with constants 1

TOP/Numerical Analysis/Continued fractions
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Calculate the continued fraction of constants a0/(b0 + a1/(b1 + a2/(b2 + ...).
\(\normalsize f={\large\frac{a_0}{b_0+{\large\frac{a_1}{b_1+{\large\frac{a_2}{b_2+...}}}}}}\\\)
a0
Numerator of the first term
b0
Denominator of the first term
an
The numerator of the nth term
bn
Denominator of the nth term
Determine the term numbers n (≤ 1000) during the expansion of the continued fraction and the result fn in a table.

\(\normalsize Continued\ fraction\\ \hspace{50px} f={\large\frac{a_0}{b_0+{\large\frac{a_1}{b_1+{\large\frac{a_2}{b_2+...}}}}}}\\ (1)\ f=\displaystyle \lim_{\small{n \to \infty}}f_n\\ \hspace{50pt}f_n={\large\frac{a_0}{b_0+}\frac{a_1}{b_1+}\frac{a_2}{b_2+}\ \cdots\ \frac{a_n}{b_n+}}\\ (2)\ Example\\ \hspace{30pt} function\hspace{24pt} a_0\hspace{22pt} b_0\hspace{23pt} a_n\hspace{20pt} b_n\\ \hspace{20pt} 1.\hspace{25pt}\pi\hspace{37pt} 4\hspace{26pt} 1\hspace{25pt} n^2\hspace{20pt} 2n+1\\ \hspace{20pt} 2.\hspace{15pt}{\large\frac{1}{e-1}}\hspace{32pt} 1\hspace{28pt} 1\hspace{20pt} n+1\hspace{10pt} n+1\\ \hspace{20pt} 3.\hspace{15pt}\ln\sqrt{2}\hspace{28pt} 1\hspace{28pt} 3\hspace{20pt} -n^2\hspace{10pt} 3(2n+1)\\ \hspace{20pt} 4.\hspace{15pt}\sqrt{2}\hspace{40pt} 2\hspace{28pt} 1\hspace{27pt} 1\hspace{25pt} 2\\ \)

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