A099288 Decimal expansion of the imaginary error function at 1.

1, 6, 5, 0, 4, 2, 5, 7, 5, 8, 7, 9, 7, 5, 4, 2, 8, 7, 6, 0, 2, 5, 3, 3, 7, 7, 2, 9, 5, 6, 1, 3, 6, 2, 4, 4, 3, 8, 9, 5, 6, 7, 9, 8, 7, 4, 8, 7, 4, 0, 2, 2, 8, 7, 7, 6, 0, 0, 2, 5, 7, 9, 9, 6, 3, 1, 6, 1, 1, 1, 3, 0, 4, 9, 2, 5, 6, 4, 5, 9, 2, 2, 5, 3, 3, 8, 5, 0, 1, 6, 8, 5, 8, 5, 4, 5, 6, 1, 8, 1, 4, 2, 5, 3, 8

Offset: 1

Author

Robert G. Wilson v, Oct 11 2004

Keywords

• cons
• nonn

Examples

			1.6504257587975428760253377295613624438956798748740228776002579963...
		

Links

• Eric Weisstein's World of Mathematics, Erfi.

Programs

Maple

evalf(erfi(1), 120);  # Alois P. Heinz, Feb 10 2022

Mathematica

RealDigits[ Erfi[1], 10, 105][[1]]

PARI

real(-I*(1.0-erfc(I))) \\ Michel Marcus, Oct 07 2020

PARI

imag(erfc(I)-1) \\ Charles R Greathouse IV, Feb 11 2025