SpheroidalS1Prime[n,m,γ,z]
gives the derivative with respect to
of the radial spheroidal function
of the first kind.
SpheroidalS1Prime
SpheroidalS1Prime[n,m,γ,z]
gives the derivative with respect to
of the radial spheroidal function
of the first kind.
Details
- Mathematical function, suitable for both symbolic and numerical manipulation.
- For certain special arguments, SpheroidalS1Prime automatically evaluates to exact values.
- SpheroidalS1Prime can be evaluated to arbitrary numerical precision.
- SpheroidalS1Prime automatically threads over lists. »
Examples
open all close allBasic Examples (4)
SpheroidalS1Prime[1, 0, 2, 2.5]Plot over a subset of the reals:
Plot[SpheroidalS1Prime[1, 0, 2, x], {x, -6, 6}]Plot over a subset of the complexes:
ComplexPlot3D[SpheroidalS1Prime[1, 0, 2, z], {z, -1 - I, 1 + I}, PlotLegends -> Automatic]Series expansion at a singular point:
Series[SpheroidalS1Prime[1, 1, π / 2, x], {x, 1, 6}]//Normal//FullSimplifyScope (23)
Numerical Evaluation (5)
SpheroidalS1Prime[5, 1, .1, .3]SpheroidalS1Prime[1, 0, 1.5, 2]N[SpheroidalS1Prime[7, 5, 1, 2], 50]N[SpheroidalS1Prime[2, 1, 1 / 3, -11], 20]The precision of the output tracks the precision of the input:
SpheroidalS1Prime[2, 2, 1 / 3, 0.211111111111111111]SpheroidalS1Prime[2, 0.211111111111111000111, 5, 6]N[SpheroidalS1Prime[23, 5 - I, 2, I]]Evaluate efficiently at high precision:
SpheroidalS1Prime[31, 5, 1, 2`100]//TimingSpheroidalS1Prime[12, 0, 2.5, 5`1000];//TimingCompute the elementwise values of an array using automatic threading:
SpheroidalS1Prime[1, 0, .2, {{1.3, .5}, {0, 0.2}}]Or compute the matrix SpheroidalS1Prime function using MatrixFunction:
MatrixFunction[SpheroidalS1Prime[1, 0, .2, #]&, {{1.3, .5}, {0, 0.2}}]Specific Values (4)
Simple exact values are generated automatically:
Table[SpheroidalS1Prime[1, 1, π / 2, x], {x, -1 / 2, 3 / 2}]Find the first positive maximum of SpheroidalS1Prime[2,0,5,x]:
xmax = x /. FindRoot[D[SpheroidalS1Prime[2, 0, 5, x], x] == 0, {x, .5}]//ChopPlot[SpheroidalS1Prime[2, 0, 5, x], {x, 0, 3}, Epilog -> Style[Point[{xmax, SpheroidalS1Prime[2, 0, 5, xmax ]}], PointSize[Large], Red]]SpheroidalS1Prime functions become elementary if m=1 and γ=n π/2 :
Table[SpheroidalS1Prime[n, 1, n π / 2, x], {n, 1, 3}]//FullSimplifyTraditionalForm typesetting:
SpheroidalS1Prime[n, m, c, η]//TraditionalFormVisualization (3)
Plot the SpheroidalS1Prime function for integer orders:
Plot[{SpheroidalS1Prime[1, 0, 2, x], SpheroidalS1Prime[2, 0, 2, x], SpheroidalS1Prime[3, 0, 2, x]}, {x, -10, 10}]Plot the SpheroidalS1Prime function for noninteger parameters:
Plot[{SpheroidalS1Prime[1, 0, 1 / 2, x], SpheroidalS1Prime[2, 0, 1 / 2, x], SpheroidalS1Prime[3, 0, 1 / 2, x]}, {x, -10, 10}]ComplexContourPlot[Re[SpheroidalS1Prime[2, 0, 1, z]], {z, -4 - 4 I, 4 + 4 I}, Contours -> 20]ComplexContourPlot[Im[SpheroidalS1Prime[2, 0, 1, z]], {z, -4 - 4 I, 4 + 4 I}, Contours -> 20]Function Properties (5)
SpheroidalS1Prime is not an analytic function:
FunctionAnalytic[SpheroidalS1Prime[1, 1, π / 2, x], x]
has both singularities and discontinuities for
:
FunctionSingularities[SpheroidalS1Prime[1, 2, π / 2, x], x]//QuietFunctionDiscontinuities[SpheroidalS1Prime[1, 2, π / 2, x], x]//Quiet
is neither non-decreasing nor non-increasing:
FunctionMonotonicity[SpheroidalS1Prime[1, 1, π / 2, x], x]FunctionInjective[SpheroidalS1Prime[1, 1, π / 2, x], x]Plot[{SpheroidalS1Prime[1, 1, π / 2, x], .1}, {x, -6, 6}]SpheroidalS1Prime is neither non-negative nor non-positive:
FunctionSign[SpheroidalS1Prime[1, 1, π / 2, x], x]SpheroidalS1Prime is neither convex nor concave:
FunctionConvexity[SpheroidalS1Prime[1, 1, π / 2, x], x]Differentiation (2)
First derivative with respect to z:
D[SpheroidalS1Prime[n, m, γ, z], z]Higher derivatives with respect to z:
Table[D[SpheroidalS1Prime[n, m, γ, z], {z, k}], {k, 1, 3}]//FullSimplifyPlot the higher derivatives with respect to z when n=10, m=2 and γ=1/3:
Plot[Evaluate[% /. { n -> 10, m -> 2, γ -> 1 / 3}], {z, -3, 3}, PlotLegends -> {"First Derivative", "Second Derivative", "Third Derivative"}]Integration (2)
Compute the indefinite integral using Integrate:
Integrate[SpheroidalS1Prime[``n``, ``m``, γ, ``z``], z]FullSimplify[D[%, z]]Integrate[SpheroidalS1Prime[``n``, ``m``, γ, ``z``], {z, 0, 5}]Series Expansions (2)
Find the Taylor expansion using Series:
Series[SpheroidalS1Prime[n, m, γ, x], {x, 0, 3}]//Normal//FullSimplifyPlots of the first three approximations around
:
terms = Normal@Table[Series[SpheroidalS1Prime[2, 0, 1, x], {x, 2, m}], {m, 1, 5, 2}]//N;
Plot[{SpheroidalS1Prime[2, 0, 1, x], terms}, {x, -10, 10}, MaxRecursion -> 1]Taylor expansion at a generic point:
Series[SpheroidalS1Prime[n, m, γ, x], {x, x0, 2}]// Normal//FullSimplifyApplications (1)
Find resonant frequencies for the Neumann problem in a prolate spheroidal cavity:
Plot[SpheroidalS1Prime[0, 0, k / (2 3^1 / 3) , 3], {k, 0, 20}, PlotPoints -> 20]Determine the first few frequencies:
FindRoot[SpheroidalS1Prime[0, 0, k / (2 3^1 / 3) , 3], {k, 4, 5}, WorkingPrecision -> 50]FindRoot[SpheroidalS1Prime[0, 0, k / (2 3^1 / 3) , 3], {k, 7, 9}, WorkingPrecision -> 50]See Also
Tech Notes
Related Guides
History
Text
Wolfram Research (2007), SpheroidalS1Prime, Wolfram Language function, https://reference.wolfram.com/language/ref/SpheroidalS1Prime.html.
CMS
Wolfram Language. 2007. "SpheroidalS1Prime." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/SpheroidalS1Prime.html.
APA
Wolfram Language. (2007). SpheroidalS1Prime. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/SpheroidalS1Prime.html
BibTeX
@misc{reference.wolfram_2026_spheroidals1prime, author="Wolfram Research", title="{SpheroidalS1Prime}", year="2007", howpublished="\url{https://reference.wolfram.com/language/ref/SpheroidalS1Prime.html}", note=[Accessed: 13-June-2026]}
BibLaTeX
@online{reference.wolfram_2026_spheroidals1prime, organization={Wolfram Research}, title={SpheroidalS1Prime}, year={2007}, url={https://reference.wolfram.com/language/ref/SpheroidalS1Prime.html}, note=[Accessed: 13-June-2026]}