About Equation ERFI.2.1.1.1 |
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LaTeX encoding |
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\operatorname{erfi} (x) = \frac{2}{\sqrt{\pi}} x + \frac{2}{3 \sqrt{\pi}} x^{3} + \frac{1}{5 \sqrt{\pi}} x^{5} + \frac{1}{21 \sqrt{\pi}} x^{7} + \frac{1}{108 \sqrt{\pi}} x^{9} + \\
\quad{}\quad{}\frac{1}{660 \sqrt{\pi}} x^{11} + \frac{1}{4680 \sqrt{\pi}} x^{13} + \frac{1}{37800 \sqrt{\pi}} x^{15} + \operatorname{O} \bigl(x^{16}\bigr)
Maple encoding |
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`&operatorname`(erfi)(x) = series(2/Pi^(1/2)*x+2/3/Pi^(1/2)*x^3+1/5/Pi^(1/2)*x^5+1/21/Pi^(1/2)*x^7+1/108/Pi^(1/2)*x^9+1/660/Pi^(1/2)*x^11+1/4680/Pi^(1/2)*x^13+1/37800/Pi^(1/2)*x^15+O(x^16),x,16)