This site is supported by donations to The OEIS Foundation.

 Hints (Greetings from The On-Line Encyclopedia of Integer Sequences!)
 A198993 Decimal expansion of x>0 satisfying 4*x^2-2*cos(x)=3. 2
 1, 0, 0, 8, 2, 9, 2, 1, 6, 7, 8, 8, 8, 8, 3, 5, 4, 7, 1, 4, 2, 7, 8, 0, 9, 8, 5, 3, 9, 9, 1, 6, 8, 6, 6, 4, 7, 3, 3, 4, 3, 7, 8, 4, 2, 3, 3, 7, 0, 5, 6, 4, 7, 5, 8, 9, 0, 9, 4, 7, 0, 9, 9, 4, 1, 4, 9, 0, 7, 7, 0, 2, 7, 0, 2, 1, 1, 3, 1, 6, 0, 4, 8, 7, 8, 2, 8, 5, 2, 0, 9, 5, 5, 3, 8, 6, 2, 5, 4 (list; constant; graph; refs; listen; history; text; internal format)
 OFFSET 1,4 COMMENTS See A198755 for a guide to related sequences.  The Mathematica program includes a graph. LINKS EXAMPLE x=1.008292167888835471427809853991686647334378423... MATHEMATICA a = 4; b = -2; c = 3; f[x_] := a*x^2 + b*Cos[x]; g[x_] := c Plot[{f[x], g[x]}, {x, -2, 2}, {AxesOrigin -> {0, 0}}] r = x /. FindRoot[f[x] == g[x], {x, 1, 1.01}, WorkingPrecision -> 110] RealDigits[r] (* A198993 *) CROSSREFS Cf. A198755. Sequence in context: A278809 A278261 A019865 * A119523 A181164 A154212 Adjacent sequences:  A198990 A198991 A198992 * A198994 A198995 A198996 KEYWORD nonn,cons AUTHOR Clark Kimberling, Nov 01 2011 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 | More pages
The OEIS Community | Maintained by The OEIS Foundation Inc.