# big float variable (visibility)

**URL:** <https://discourse.julialang.org/t/big-float-variable-visibility/7423>\
**Category:** General Usage\
**Created:** [November 30, 2017, 10:11pm UTC](https://discourse.julialang.org/t/big-float-variable-visibility/7423 "2017-11-30T22:11:11Z")\
**Posts on this page:** 1\
**Showing post:** 15

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**Author:** ![dpsanders](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dpsanders/32/3573_2.png) [@dpsanders](https://discourse.julialang.org/u/dpsanders)\
**Post date:** [December 3, 2017, 7:22pm UTC](https://discourse.julialang.org/t/big-float-variable-visibility/7423/15 "2017-12-03T19:22:36Z")

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You can just use what I put previously to write a function `print_it(x::BigFloat)`.  
Probably it’s not worth messing with anything internal.

MPFR is the [underlying library([GNU MPFR - Wikipedia](https://en.wikipedia.org/wiki/GNU_MPFR)) that Julia wraps for BigFloat functionality.

Somebody else will have to chime in about why those libraries are not available – presumably it’s a Windows issue.

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