英文:

BigFloat in julia

问题

无法加载 bigFloat 包到 julia 中（奇怪的是，ArbFloat 包也不能）。当我执行：

```julia
using BigFloat

a = big"1.000000000000000000001"
b = big"1.000000000000000000002"

c = a + b
@show c

我得到以下错误：

ERROR: LoadError: ArgumentError: Package BigFloat not found in current path.
- Run `import Pkg; Pkg.add("BigFloat")` to install the BigFloat package.
Stacktrace:
 [1] macro expansion
   @ ./loading.jl:1163 [inlined]
 [2] macro expansion
   @ ./lock.jl:223 [inlined]
 [3] require(into::Module, mod::Symbol)
   @ Base ./loading.jl:1144

我重新安装了 julia，但问题没有解决。我也尝试在终端中按要求安装 BigFloat 包，但没有成功。我希望返回 c = 2.000000000000000000000000000000003。
此外，我需要一个可以精确到 250 位小数的包。我试图使用 bigFloat，但无法安装它。AbsFloat 包也无法安装。

<details>
<summary>英文:</summary>

I can&#39;t load the bigFloat package into julia (oddly enough, neither can the ArbFloat package). 
when I do: 

using BigFloat

a = big"1.000000000000000000001"
b = big"1.000000000000000000002"

c = a + b
@show c

I get the following error: 

ERROR: LoadError: ArgumentError: Package BigFloat not found in current path.

• Run import Pkg; Pkg.add("BigFloat") to install the BigFloat package.
  Stacktrace:
  [1] macro expansion
  @ ./loading.jl:1163 [inlined]
  [2] macro expansion
  @ ./lock.jl:223 [inlined]
  [3] require(into::Module, mod::Symbol)
  @ Base ./loading.jl:1144

I reinstalled julia and it didn't solve the problem. 
I also tried to install the BigFloat package as requested in the terminal, but without success. 
wanted to return  `c = 2.000000000000000000000000000000003.
Furthermore, I need a package that works with 250 decimal places of precision. I am trying to use bigFloat, but I couldn't install it. I couldn't install the AbsFloat package either.  

</details>


# 答案1
**得分**: 3

`BigFloat` 不是一个包。如果你只是删除那一行，它将正常工作。

<details>
<summary>英文:</summary>

`BigFloat` isn&#39;t a package. if you just remove that line it will work.

</details>