Cyclotomic
Cyclotomic[n,x]
给出关于 x 的 n 阶割圆多项式.
范例
打开所有单元 关闭所有单元基本范例 (1)
范围 (1)
TraditionalForm 格式:
Cyclotomic[n, x]//TraditionalForm应用 (6)
比较一个因式分解的多项式与 Cyclotomic:
Factor[x ^ 11 - 1]Cyclotomic[11, x]Table[Cyclotomic[n, 1], {n, 2, 20}]对于
的十进制展开具有独特周期 唯一素数 (unique primes) 进行计算:
up[n_] := If[Length[#] === 1, #[[1, 1]]]&[FactorInteger[Cyclotomic[n, 10] / GCD[Cyclotomic[n, 10], n]]]Select[Table[up[n], {n, 30}], NumberQ]RealDigits[1 / %]//ColumnPlot[Evaluate[Table[Cyclotomic[k, z], {k, 0, 10}]], {z, -1, 1}]绘制 Cyclotomic 根的变量:
ListPlot[Table[{Arg[#], n}& /@ (z /. NSolve[Cyclotomic[n, z] == 0, z]), {n, 50}], PlotMarkers -> None]{ListPlot[Table[Exponent[Cyclotomic[n, x], x], {n, 500}]],
ListPlot[Table[Length[Cyclotomic[n, x]], {n, 500}]]}属性和关系 (7)
Integrate a cyclotomic polynomial:
Integrate[1 / Cyclotomic[3, x], x]Factor[Cyclotomic[5, x]]Factor[Cyclotomic[5, x], Extension -> {(-1) ^ (1 / 5)}]c[n_, z_] := Collect[Product[z - E^(2 π I k/n), {k, Select[Range[n], CoprimeQ[#, n]&]}], z, FullSimplify]Table[c[n, z], {n, 10}]c[n_, z_] := Cancel[Times@@((1 - z ^ #) ^ MoebiusMu[n / #]& /@ Divisors[n])]Table[c[n, z], {n, 6}]Table[Cyclotomic[n, z], {n, 6}]f[n_, z_] := Expand[Times@@(Cyclotomic[#, z]& /@ Divisors[n])]Table[f[n, z], {n, 1, 8}]ParametricPlot3D[Evaluate[{Re[Cyclotomic[10, x + I y]], Im[Cyclotomic[10, x + I y]], x}], {x, -2, 2}, {y, -2, 2}, Mesh -> False, BoxRatios -> 1]Graphics[Point[Flatten[Map[{Re[#], Im[#]}&, Table[z /. NSolve[D[Cyclotomic[50, z], {z, k}] == 0, z], {k, EulerPhi[50] - 2}], {-1}], 1]]]技术笔记
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- 多项式的代数运算
相关指南
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- 多项式代数
历史
1988年引入 (1.0)
文本
Wolfram Research (1988),Cyclotomic,Wolfram 语言函数,https://reference.wolfram.com/language/ref/Cyclotomic.html.
CMS
Wolfram 语言. 1988. "Cyclotomic." Wolfram 语言与系统参考资料中心. Wolfram Research. https://reference.wolfram.com/language/ref/Cyclotomic.html.
APA
Wolfram 语言. (1988). Cyclotomic. Wolfram 语言与系统参考资料中心. 追溯自 https://reference.wolfram.com/language/ref/Cyclotomic.html 年
BibTeX
@misc{reference.wolfram_2026_cyclotomic, author="Wolfram Research", title="{Cyclotomic}", year="1988", howpublished="\url{https://reference.wolfram.com/language/ref/Cyclotomic.html}", note=[Accessed: 11-September-2026]}
BibLaTeX
@online{reference.wolfram_2026_cyclotomic, organization={Wolfram Research}, title={Cyclotomic}, year={1988}, url={https://reference.wolfram.com/language/ref/Cyclotomic.html}, note=[Accessed: 11-September-2026]}