login
This site is supported by donations to The OEIS Foundation.

 

Logo

Please make a donation to keep the OEIS running. We are now in our 55th year. In the past year we added 12000 new sequences and reached 8000 citations (which often say "discovered thanks to the OEIS"). We need to raise money to hire someone to manage submissions, which would reduce the load on our editors and speed up editing.
Other ways to donate

Hints
(Greetings from The On-Line Encyclopedia of Integer Sequences!)
A215499 Decimal expansion of the smallest root of tan(x) = log(x). 0
4, 0, 9, 5, 4, 6, 1, 6, 0, 5, 9, 0, 9, 9, 1, 9, 3, 1, 2, 5, 3, 9, 0, 6, 2, 0, 9, 3, 1, 0, 7, 7, 3, 1, 8, 0, 6, 0, 5, 0, 0, 6, 6, 3, 9, 0, 8, 7, 8, 5, 4, 9, 4, 1, 6, 9, 2, 4, 3, 4, 3, 5, 9, 7, 2, 9, 7, 9, 2, 5, 4, 7, 1, 0, 8, 9, 7, 2, 5, 7, 8, 9, 5, 3, 7, 4, 7 (list; constant; graph; refs; listen; history; text; internal format)
OFFSET

1,1

COMMENTS

The second root is  7.390369571112932...

The third root is 10.59483666075098025...

LINKS

Table of n, a(n) for n=1..87.

EXAMPLE

4.095461605909919312...

MAPLE

Digits:=120:fsolve(tan(x)-log(x) =0, x, 1..5);

MATHEMATICA

RealDigits[ FindRoot[Tan[x] == Log[x], {x, {3, 5} }, WorkingPrecision -> 120] [[3, 5] ]] [[2]]

PROG

(PARI) solve(x=4, 4.1, tan(x)-log(x)) \\ Charles R Greathouse IV, Apr 16 2014

CROSSREFS

Sequence in context: A242015 A187507 A187857 * A190262 A187586 A198866

Adjacent sequences:  A215496 A215497 A215498 * A215500 A215501 A215502

KEYWORD

nonn,cons

AUTHOR

Michel Lagneau, Aug 13 2012

STATUS

approved

Lookup | Welcome | Wiki | Register | Music | Plot 2 | Demos | Index | Browse | More | WebCam
Contribute new seq. or comment | Format | Style Sheet | Transforms | Superseeker | Recent
The OEIS Community | Maintained by The OEIS Foundation Inc.

License Agreements, Terms of Use, Privacy Policy. .

Last modified December 6 08:53 EST 2019. Contains 329788 sequences. (Running on oeis4.)