# LameC

LameC[ν,j,z,m]

gives the Lamé function of order with elliptic parameter .

# Details

• LameC belongs to the Lamé class of functions and solves boundary-value problems for Laplace's equation in ellipsoidal and spheroconal coordinates, as well as occurring in other problems of mathematical physics and quantum mechanics.
• Mathematical function, suitable for both symbolic and numerical manipulation.
• LameC[ν,j,z,m] satisfies the Lamé differential equation , with the Lamé eigenvalue given by LameEigenvalueA[ν,j,m], and where is the Jacobi elliptic function JacobiSN[z,m].
• For certain special arguments, LameC automatically evaluates to exact values.
• LameC can be evaluated to arbitrary numerical precision for an arbitrary complex argument.
• LameC automatically threads over lists.
• LameC[ν,0,z,0]= and LameC[ν,j,z,0]=Cos[j(-z)].
• LameC[ν,j,z,m] is proportional to HeunG[a,q,α,β,γ,δ,ξ], where , if the parameters of HeunG are specialized as follows: .

# Examples

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## Basic Examples(3)

Evaluate numerically:

Plot the LameC function for and :

Series expansion of LameC at the origin:

## Scope(27)

### Numerical Evaluation(5)

Evaluate to high precision:

The precision of the output tracks the precision of the input:

LameC can take complex number parameters and argument:

Evaluate LameC efficiently at high precision:

Lists and matrices:

### Specific Values(3)

Value of LameC when and :

Value of LameC when and :

Some poles of LameC:

For integer values of and , LameC can be expressed entirely in terms of Jacobi elliptic functions:

### Visualization(6)

Plot the first three even LameC functions:

Plot the first three odd LameC functions:

Plot the absolute value of the LameC function for complex parameters:

Plot LameC as a function of its first parameter :

Plot LameC as a function of and elliptic parameter :

Plot the family of LameC functions for different values of the elliptic parameter :

### Function Properties(2)

When is even, LameC is a periodic function of real argument with a period 2EllipticK[m]:

When is odd, LameC is a periodic function of real argument with a period 4EllipticK[m] and has an initial value LameC[ν,j,0,m]=0:

### Differentiation(3)

The -derivative of LameC is LameCPrime:

Higher derivatives of LameC are calculated using LameCPrime:

Derivatives of LameC for specific cases of parameters:

### Integration(3)

Indefinite integrals of LameC cannot be expressed in elementary or other special functions:

Definite numerical integrals of LameC:

More integrals with LameC:

### Series Expansions(3)

Series expansion of LameC at the origin:

Coefficient of the second-order term of this expansion:

Plot the first- and third-order approximations for LameC around :

Series expansion for LameC at any ordinary complex point:

### Function Representations(2)

LameC cannot be represented in terms of MeijerG:

## Applications(1)

LameC solves the Lamé differential equation when h=LameEigenvalueA[ν,j,m]:

## Properties & Relations(2)

LameC is an even function when is a non-negative even integer:

LameC is an odd function when is a positive odd integer:

Use FunctionExpand to expand LameC for integer values of and :

## Possible Issues(1)

LameC is not defined if is a negative integer:

LameC is not defined if is not an integer:

Wolfram Research (2020), LameC, Wolfram Language function, https://reference.wolfram.com/language/ref/LameC.html.

#### Text

Wolfram Research (2020), LameC, Wolfram Language function, https://reference.wolfram.com/language/ref/LameC.html.

#### CMS

Wolfram Language. 2020. "LameC." Wolfram Language & System Documentation Center. Wolfram Research. https://reference.wolfram.com/language/ref/LameC.html.

#### APA

Wolfram Language. (2020). LameC. Wolfram Language & System Documentation Center. Retrieved from https://reference.wolfram.com/language/ref/LameC.html

#### BibTeX

@misc{reference.wolfram_2024_lamec, author="Wolfram Research", title="{LameC}", year="2020", howpublished="\url{https://reference.wolfram.com/language/ref/LameC.html}", note=[Accessed: 19-June-2024 ]}

#### BibLaTeX

@online{reference.wolfram_2024_lamec, organization={Wolfram Research}, title={LameC}, year={2020}, url={https://reference.wolfram.com/language/ref/LameC.html}, note=[Accessed: 19-June-2024 ]}