A389484 Decimal expansion of the least x > 0 such that exp(-x) - tan(x) = 0.

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

Offset

0,1

Comments

Also decimal expansion of the least x > 0 such that exp(x) - cot(x) = 0.

Links

Table of n, a(n) for n=0..101.

Index entries for transcendental numbers.

Example

0.531390856652157204620266440604715313683074999468035...

Mathematica

RealDigits[x/.FindRoot[Exp[-x]-Tan[x]\[Equal]0, {x, 0.5, 0.6}, WorkingPrecision->200]][[1]]

Crossrefs

Cf. A069997, A196401, A389485.

Sequence in context: A242439 A176318 A190406 * A021657 A154180 A011332

Adjacent sequences: A389481 A389482 A389483 * A389485 A389486 A389487

Keyword

nonn,cons

Author

Stefano Spezia, Oct 06 2025

Status

approved