# Promotion to BigFloat -- no zero padding

**URL:** <https://discourse.julialang.org/t/promotion-to-bigfloat-no-zero-padding/66042>\
**Category:** General Usage\
**Tags:** bigfloat\
**Created:** [August 8, 2021, 8:39pm UTC](https://discourse.julialang.org/t/promotion-to-bigfloat-no-zero-padding/66042 "2021-08-08T20:39:50Z")\
**Posts on this page:** 1\
**Showing post:** 8

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**Author:** ![Palli](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/palli/32/3380_2.png) [@Palli](https://discourse.julialang.org/u/Palli)\
**Post date:** [August 8, 2021, 11:24pm UTC](https://discourse.julialang.org/t/promotion-to-bigfloat-no-zero-padding/66042/8 "2021-08-08T23:24:59Z")

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There’s also:

> **[GitHub - JuliaMath/Decimals.jl: Pure Julia decimal arithmetic library.](https://github.com/JuliaMath/Decimals.jl)**
>
> Pure Julia decimal arithmetic library. Contribute to JuliaMath/Decimals.jl development by creating an account on GitHub.

See, here, maybe you don’t want to use it:

> [@Computations with decimals (arbitrary precision)](https://discourse.julialang.org/t/computations-with-decimals-arbitrary-precision/65534):
>
> Hello everybody ! I’m busy now with studying the speed of convergence of sequences of real numbers. I begin to study classical algorithms like Archimedes polygonal approximation of pi, and newton computations of a square root. I already illustrated with some simple python programs and I want to translate into Julia . Here’s an example : from decimal import Decimal, getcontext def u(n): if n == 0: return Decimal(1) return (u(n - 1) + (2 - u(n - 1) \* u(n - 1)) / (2 \* u(n …

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