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test: fix two typos in float_lit2.go

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Noted by gri in CL 100660044 review but I missed them.

TBR=gri
CC=golang-codereviews
https://golang.org/cl/97570049
This commit is contained in:
Russ Cox 2014-05-21 17:19:12 -04:00
parent 2de449e7a0
commit cab54408da
1 changed files with 2 additions and 2 deletions
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4
test/float_lit2.go
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@ -16,9 +16,9 @@ import (
// The largest exact float32 is f₁ = (1+(1-2²³))×2¹²⁷ = (1-2²⁴)×2¹²⁸ = 2¹²⁸ - 2¹⁰⁴.
// The next float32 would be f₂ = (1+1)×2¹²⁷ = 1×2¹²⁸, except that exponent is out of range.
// Float32 conversion rounds to the nearest float32, rounding to even mantissa:
// between f₁ and f₂, values closer to f₁ round to f₁and values closer to f₂ are rejected as out of range.
// between f₁ and f₂, values closer to f₁ round to f₁ and values closer to f₂ are rejected as out of range.
// f₁ is an odd mantissa, so the halfway point (f₁+f₂)/2 rounds to f₂ and is rejected.
// The halfway point (f₁+f₂)/2 = 2¹²⁸ - 2¹⁰⁵.
// The halfway point is (f₁+f₂)/2 = 2¹²⁸ - 2¹⁰⁵.
//
// The same is true of float64, with different constants: s/24/53/ and s/128/1024/.