A389485 Decimal expansion of the least x > 0 such that exp(x) - tan(x) = 0.

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

Offset

1,2

Comments

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

Links

Table of n, a(n) for n=1..100.

Index entries for transcendental numbers.

Example

1.306326940423079236174356658440682315179068358...

Mathematica

RealDigits[x/.FindRoot[Exp[x]-Tan[x]\[Equal]0, {x, 1.2, 1.4}, WorkingPrecision->100]][[1]]

Crossrefs

Cf. A069997, A196401, A389484.

Sequence in context: A382521 A085753 A120008 * A162197 A160770 A212225

Adjacent sequences: A389482 A389483 A389484 * A389486 A389487 A389488

Keyword

nonn,cons

Author

Stefano Spezia, Oct 06 2025

Status

approved