Could somebody explain me next rows:
var a, b = 2.0000001, 3.00000
fmt.Println(a + b)
fmt.Println(2.0000001 + 3.00000)
results of prints:
first print: 5.000000099999999
second print: 5.0000001
Why result of first print as above?
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godvlpr
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1The first `fmt.Println()` adds 2 `float64` non-constant values, the second one adds 2 constant values, using constant arithmetic, which uses arbitrary precision, and only converts the result to `float64`. – icza May 13 '22 at 08:40
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@icza okay, but why non-constant arithmetic uses arbitrary precision? – godvlpr May 13 '22 at 08:47
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Non-constant arithmetic uses the [IEEE 754 standard](https://en.wikipedia.org/wiki/IEEE_754), like most programming languages. – icza May 13 '22 at 09:10
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See [Go Blog: Constants](https://go.dev/blog/constants) – icza May 13 '22 at 09:11