ESF - The Encyclopedia of Special Functions

About Equation SI.2.1.1.1

$\begin{equation*} \begin{split} & \operatorname{Si} (x)\approx x \Biggl(1 - \frac{x^{2}}{18} + \frac{x^{4}}{600} - \frac{x^{6}}{35280} + \frac{x^{8}}{3265920} - \frac{x^{10}}{439084800} + \frac{x^{12}}{80951270400} - \\ & \quad{}\quad{}\frac{x^{14}}{19615115520000}\ldots\Biggr) \end{split} \end{equation*}$

Absolute reference: SI:asympt:0:terms

LaTeX encoding

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\operatorname{Si} (x)\approx x \Biggl(1 - \frac{x^{2}}{18} + \frac{x^{4}}{600} - \frac{x^{6}}{35280} + \frac{x^{8}}{3265920} - \frac{x^{10}}{439084800} + \frac{x^{12}}{80951270400} - \\ \quad{}\quad{}\frac{x^{14}}{19615115520000}\ldots\Biggr)

Maple encoding

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`&sepsequence`(`&nothing`,`&operatorname`(Si)(x),approx,nullspace,x*`&delimiter`(leftparens,rightparens,false,`&sepsequence`(`&nothing`,1-1/18*x^2+1/600*x^4-1/35280*x^6+1/3265920*x^8-1/439084800*x^10+1/80951270400*x^12-1/19615115520000*x^14,ldots)))