1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
|
---
title: specialfunctions
---
# Special functions
[TOC]
## `legendre` - Calculate Legendre polynomials
### Status
Experimental
### Description
Computes the value of the n-th Legendre polynomial at a specified point.
Currently only 64 bit floating point is supported.
This is an `elemental` function.
### Syntax
`result = ` [[stdlib_specialfunctions(module):legendre(interface)]] ` (n, x)`
### Arguments
`n`: Shall be a scalar of type `real(real64)`.
`x`: Shall be a scalar or array (this function is elemental) of type `real(real64)`.
### Return value
The function result will be the value of the `n`-th Legendre polynomial, evaluated at `x`.
## `dlegendre` - Calculate first derivatives of Legendre polynomials
### Status
Experimental
### Description
Computes the value of the first derivative of the n-th Legendre polynomial at a specified point.
Currently only 64 bit floating point is supported.
This is an `elemental` function.
### Syntax
`result = ` [[stdlib_specialfunctions(module):dlegendre(interface)]] ` (n, x)`
### Arguments
`n`: Shall be a scalar of type `real(real64)`.
`x`: Shall be a scalar or array (this function is elemental) of type `real(real64)`.
### Return value
The function result will be the value of the first derivative of the `n`-th Legendre polynomial, evaluated at `x`.
|
