3
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Bug introduced in 8.0.4 or earlier and fixed in 11.2


Why there is an error message for ContinuedFractionK[k, 1, {k, Infinity}]?

enter image description here

It is well known that, this continued fraction converges to

$$\frac{\sqrt{\frac{2}{e \pi }}}{\text{erfc}\left(\frac{1}{\sqrt{2}}\right)}-1.$$

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  • $\begingroup$ In 11.2, ContinuedFractionK[k, 1, {k, Infinity}] is now left unevaluated, without an error message showing up. $\endgroup$ – J. M. is away Mar 16 '18 at 17:46
  • $\begingroup$ In MMA 11.3 BUG occurs again!!! $\endgroup$ – Mariusz Iwaniuk Mar 16 '18 at 18:06

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