# what is "1.2+0.21" in Julia?

**URL:** <https://discourse.julialang.org/t/what-is-1-2-0-21-in-julia/13085>\
**Category:** General Usage\
**Tags:** question\
**Created:** [August 9, 2018, 12:36pm UTC](https://discourse.julialang.org/t/what-is-1-2-0-21-in-julia/13085 "2018-08-09T12:36:01Z")\
**Posts on this page:** 1\
**Showing post:** 6

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**Author:** ![DNF](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/dnf/32/10191_2.png) [@DNF](https://discourse.julialang.org/u/DNF)\
**Post date:** [August 9, 2018, 1:28pm UTC](https://discourse.julialang.org/t/what-is-1-2-0-21-in-julia/13085/6 "2018-08-09T13:28:32Z")

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This is the post you should read to get a quick overview of floating point issues: [PSA: floating-point arithmetic](https://discourse.julialang.org/t/psa-floating-point-arithmetic/8678)

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