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As there is a BesselJ function, it would be interesting to implement the Modified Bessel function or BesselI.
Here is the [reference](https://mathworld.wolfram.com/ModifiedBesselFunctionoftheFirstKin…
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... to be able to construct laplacian eigenfunctions.
CC @wcwitt
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hello! I was playing with ethercalc, very neat stuff! I noticed that the bessel functions like BESSELJ are missing https://support.office.com/en-us/article/BESSELJ-function-839CB181-48DE-408B-9D80-BD0…
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@Axect Hi! I am interested to solve Mie scattering problem in pure Rust (to make a WebAssembly module for web app as an ultimate goal). Thus, your crate seems to be a good starting point. So I need t…
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Spherical Bessel functions of the first kind are defined as,
```
from mpmath import mpf, sqrt, pi, besselj
def sph_jn(n, z):
return besselj(n + mpf(1)/2, z)*sqrt(pi/(2*z))
```
For positive inte…
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Spherical Hankel functions are not directly available in SciPy. However, spherical Bessel functions can be used to implement them. IMHO, it would be a nice extension of special functions.
def spher…
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The names for these functions lack outside context and are very short - I propose renaming them in the following way:
| old name | new name |
|-----|-----|
| j0 | firstBesselOrder0 |
| j1 | firs…
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```
Some simplifications for the Bessel functions are missing.
An example:
cosine_transform(1/t*sin(a/t), t, w)
gives a huge, ugly result involving Bessel function I and J of small integer order.
T…
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I am using version 0.7.2 and have identified three problems involving the Bessel functions. These were found in association with trying to solve the ODE -y"/2+y/x=0
------------------------------…
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```
Bessel functions satisfy tons of identities. To get answers in reasonably nice form, a special simplification function is probably necessary.
Also bessel functions could use some more convenience…