# gamma(::BigFloat) overflows on Windows
**URL:** https://discourse.julialang.org/t/gamma-bigfloat-overflows-on-windows/60169
**Category:** General Usage
**Tags:** specialfunctions
**Created:** [April 28, 2021, 1:53pm UTC](https://discourse.julialang.org/t/gamma-bigfloat-overflows-on-windows/60169 "2021-04-28T13:53:36Z")
**Posts on this page:** 8
**Page:** 1
### Author:  [@DNF](https://discourse.julialang.org/u/DNF)
#### Post date: [April 28, 2021, 1:53pm UTC](https://discourse.julialang.org/t/gamma-bigfloat-overflows-on-windows/60169/1 "2021-04-28T13:53:36Z")
```julia
jl> p = big(3.6e13)
3.6e+13
jl> q = 1/big(0.563483398)+1
2.774675178628776489804929213602311938188089959295862682297487944939957397047059
jl> beta(p, q)
NaN
```
?? 😕
---
### Author:  [@DNF](https://discourse.julialang.org/u/DNF)
#### Post date: [April 28, 2021, 1:55pm UTC](https://discourse.julialang.org/t/gamma-bigfloat-overflows-on-windows/60169/2 "2021-04-28T13:55:46Z")
> [@Differences in MATLAB's versus Julia's beta(x, y) for large x or y?](https://discourse.julialang.org/t/differences-in-matlabs-versus-julias-beta-x-y-for-large-x-or-y/60138/7):
>
> ```julia
> julia> gamma(big(3.6e13))
> 7.882861104028365451673058070377064242970022825665897715265241972922672893761775e+472392288679098
>
> ```
On my computer:
```julia
jl> gamma(big(3.6e13))
Inf
jl> @which gamma(big(3.6e13))
gamma(x::BigFloat) in SpecialFunctions at C:\Users\dnf\.julia\packages\SpecialFunctions\mFAQ4\src\gamma.jl:578
```
---
### Author:  [@mbauman](https://discourse.julialang.org/u/mbauman)
#### Post date: [April 28, 2021, 1:58pm UTC](https://discourse.julialang.org/t/gamma-bigfloat-overflows-on-windows/60169/3 "2021-04-28T13:58:43Z")
Hunh. I’m also Julia 1.6, SpecialFunctions 1.3.0. How did you install Julia? On what platform?
---
### Author:  [@DNF](https://discourse.julialang.org/u/DNF)
#### Post date: [April 28, 2021, 2:11pm UTC](https://discourse.julialang.org/t/gamma-bigfloat-overflows-on-windows/60169/4 "2021-04-28T14:11:40Z")
I have two different installations: Julia 1.6.0 on Windows 10, and version 1.6.1 on WSL2 under Windows 10 (it’s on the same system).
The ordinary Windows installation:
```julia
jl> gamma(big(3.6e13))
Inf
```
while the one under WSL2:
```julia
jl> gamma(big(3.6e13))
7.882861104028365451673058070377064242970022825665897715265241972922672893761775e+472392288679098
```
---
### Author:  [@mbauman](https://discourse.julialang.org/u/mbauman)
#### Post date: [April 28, 2021, 2:16pm UTC](https://discourse.julialang.org/t/gamma-bigfloat-overflows-on-windows/60169/5 "2021-04-28T14:16:32Z")
I’ve split this out — would you be willing to file a bug report? You seem uniquely well placed to look at precisely the differences that are causing this.
---
### Author:  [@DNF](https://discourse.julialang.org/u/DNF)
#### Post date: [April 28, 2021, 2:37pm UTC](https://discourse.julialang.org/t/gamma-bigfloat-overflows-on-windows/60169/7 "2021-04-28T14:37:12Z")
Yes, I can do that later today.
---
### Author:  [@DNF](https://discourse.julialang.org/u/DNF)
#### Post date: [April 28, 2021, 7:51pm UTC](https://discourse.julialang.org/t/gamma-bigfloat-overflows-on-windows/60169/8 "2021-04-28T19:51:35Z")
[https://github.com/JuliaMath/SpecialFunctions.jl/issues/309](https://github.com/JuliaMath/SpecialFunctions.jl/issues/309)
---
### Author:  [@bashonubuntu](https://discourse.julialang.org/u/bashonubuntu)
#### Post date: [April 29, 2021, 2:36pm UTC](https://discourse.julialang.org/t/gamma-bigfloat-overflows-on-windows/60169/9 "2021-04-29T14:36:24Z")
Hey @DNF and @mbauman, thanks for taking so much time to reply to the other thread.
When I opened the other post, I hadn’t foreseen it could help in uncovering a related issue.
I’ll be watching the github issue closely – thanks again for taking out so much time for this 🙂