cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

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A200626 Decimal expansion of the lesser of two values of x satisfying 5*x^2 - 4 = tan(x) and 0 < x < Pi/2.

Original entry on oeis.org

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

Views

Author

Clark Kimberling, Nov 20 2011

Keywords

Comments

See A200614 for a guide to related sequences. The Mathematica program includes a graph.

Examples

			lesser:  1.0862483073723514930516537470257901302111...
greater: 1.4001025553369417418319593715715854730538...

Links

Crossrefs

Cf. A200614.

Programs

  • Mathematica
    a = 5; c = 4;
f[x_] := a*x^2 - c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .9, 1.0}, WorkingPrecision -> 110]
RealDigits[r]   (* A200626 *)
r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
RealDigits[r]   (* A200627 *)

A200627 Decimal expansion of the greater of two values of x satisfying 5*x^2 - 4 = tan(x) and 0 < x < Pi/2.

Original entry on oeis.org

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

Views

Author

Clark Kimberling, Nov 20 2011

Keywords

Comments

See A200614 for a guide to related sequences. The Mathematica program includes a graph.

Examples

			lesser:  1.0862483073723514930516537470257901302111...
greater: 1.4001025553369417418319593715715854730538...

Links

Crossrefs

Cf. A200614.

Programs

  • Mathematica
    a = 5; c = 4;
f[x_] := a*x^2 - c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .9, 1.0}, WorkingPrecision -> 110]
RealDigits[r]   (* A200626 *)
r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
RealDigits[r]   (* A200627 *)

A200633 Decimal expansion of the lesser of two values of x satisfying 6*x^2 - 1 = tan(x) and 0 < x < Pi/2.

Original entry on oeis.org

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

Views

Author

Clark Kimberling, Nov 20 2011

Keywords

Comments

See A200614 for a guide to related sequences. The Mathematica program includes a graph.

Examples

			lesser:  0.50974170891854848924604966585258686270831...
greater: 1.48978365608349822096681798686067147504261...

Links

Crossrefs

Cf. A200614.

Programs

  • Mathematica
    a = 6; c = 1;
f[x_] := a*x^2 - c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .5, .6}, WorkingPrecision -> 110]
RealDigits[r]   (* A200633 *)
r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
RealDigits[r]   (* A200634 *)

A200634 Decimal expansion of the greater of two values of x satisfying 6*x^2 - 1 = tan(x) and 0 < x < Pi/2.

Original entry on oeis.org

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

Views

Author

Clark Kimberling, Nov 20 2011

Keywords

Comments

See A200614 for a guide to related sequences. The Mathematica program includes a graph.

Examples

			lesser:  0.50974170891854848924604966585258686270831...
greater: 1.48978365608349822096681798686067147504261...

Links

Crossrefs

Cf. A200614.

Programs

  • Mathematica
    a = 6; c = 1;
f[x_] := a*x^2 - c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .5, .6}, WorkingPrecision -> 110]
RealDigits[r]   (* A200633 *)
r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
RealDigits[r]   (* A200634 *)

A200635 Decimal expansion of the lesser of two values of x satisfying 6*x^2 - 5 = tan(x) and 0 < x < Pi/2.

Original entry on oeis.org

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

Views

Author

Clark Kimberling, Nov 20 2011

Keywords

Comments

See A200614 for a guide to related sequences. The Mathematica program includes a graph.

Examples

			lesser:  1.0650216206187079002949359361195227330132...
greater: 1.4359727977477278397377595713631806347524...

Links

Crossrefs

Cf. A200614.

Programs

  • Mathematica
    a = 6; c = 5;
f[x_] := a*x^2 - c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, 1, 1.1}, WorkingPrecision -> 110]
RealDigits[r]   (* A200635 *)
r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
RealDigits[r]   (* A200636 *)

A200636 Decimal expansion of the greater of two values of x satisfying 6*x^2 - 5 = tan(x) and 0 < x < Pi/2.

Original entry on oeis.org

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

Views

Author

Clark Kimberling, Nov 20 2011

Keywords

Comments

See A200614 for a guide to related sequences. The Mathematica program includes a graph.

Examples

			lesser:  1.0650216206187079002949359361195227...
greater: 1.4359727977477278397377595713631806...

Links

Crossrefs

Cf. A200614.

Programs

  • Mathematica
    a = 6; c = 5;
f[x_] := a*x^2 - c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, 1, 1.1}, WorkingPrecision -> 110]
RealDigits[r]   (* A200635 *)
r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
RealDigits[r]   (* A200636 *)

A200679 Decimal expansion of the lesser of two values of x satisfying 2*x^2 = tan(x) and 0 < x < Pi/2.

Original entry on oeis.org

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

Views

Author

Clark Kimberling, Nov 20 2011

Keywords

Comments

See A200614 for a guide to related sequences. The Mathematica program includes a graph.

Examples

			lesser:  0.55970415227308065061037721283588022...
greater: 1.27034264779958271106399033503202112...

Links

Crossrefs

Cf. A200614.

Programs

  • Mathematica
    a = 2; c = 0;
f[x_] := a*x^2 - c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .5, .6}, WorkingPrecision -> 110]
RealDigits[r] (* A200679 *)
r = x /. FindRoot[f[x] == g[x], {x, 1.2, 1.3}, WorkingPrecision -> 110]
RealDigits[r] (* A200680 *)

A200680 Decimal expansion of the greater of two values of x satisfying 2*x^2 = tan(x) and 0 < x < Pi/2.

Original entry on oeis.org

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

Views

Author

Clark Kimberling, Nov 20 2011

Keywords

Comments

See A200614 for a guide to related sequences. The Mathematica program includes a graph.

Examples

			lesser:  0.55970415227308065061037721283588022...
greater: 1.27034264779958271106399033503202112...

Links

Crossrefs

Cf. A200614.

Programs

  • Mathematica
    a = 2; c = 0;
f[x_] := a*x^2 - c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .5, .6}, WorkingPrecision -> 110]
RealDigits[r] (* A200679 *)
r = x /. FindRoot[f[x] == g[x], {x, 1.2, 1.3}, WorkingPrecision -> 110]
RealDigits[r] (* A200680 *)

A200681 Decimal expansion of the lesser of two values of x satisfying 3*x^2 = tan(x) and 0 < x < Pi/2.

Original entry on oeis.org

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

Views

Author

Clark Kimberling, Nov 20 2011

Keywords

Comments

See A200614 for a guide to related sequences. The Mathematica program includes a graph.

Examples

			lesser:  0.34742576447743871128905641295532587...
greater: 1.40306042080937123884892134944944201...

Links

Crossrefs

Cf. A200614.

Programs

  • Mathematica
    a = 3; c = 0;
f[x_] := a*x^2 - c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .3, .4}, WorkingPrecision -> 110]
RealDigits[r] (* A200681 *)
r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
RealDigits[r] (* A200682 *)

A200682 Decimal expansion of the greater of two values of x satisfying 3*x^2 = tan(x) and 0 < x < Pi/2.

Original entry on oeis.org

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

Views

Author

Clark Kimberling, Nov 20 2011

Keywords

Comments

See A200614 for a guide to related sequences. The Mathematica program includes a graph.

Examples

			lesser:  0.34742576447743871128905641295532587...
greater: 1.40306042080937123884892134944944201...

Links

Crossrefs

Cf. A200614.

Programs

  • Mathematica
    a = 3; c = 0;
f[x_] := a*x^2 - c; g[x_] := Tan[x]
Plot[{f[x], g[x]}, {x, -.1, Pi/2}, {AxesOrigin -> {0, 0}}]
r = x /. FindRoot[f[x] == g[x], {x, .3, .4}, WorkingPrecision -> 110]
RealDigits[r] (* A200681 *)
r = x /. FindRoot[f[x] == g[x], {x, 1.4, 1.5}, WorkingPrecision -> 110]
RealDigits[r] (* A200682 *)
Previous Showing 11-20 of 60 results. Next

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