Thanks guys. That's very helpful. I forgot that what I saw (and re-used)
as the "height" was not precise enough to make it comparable.
On Thursday, February 22, 2018 at 3:33:38 PM UTC-5, Steve Bagwell wrote:
>
>
> Hello Everyone,
>
> This looks like a Golang bug to me. What do you all think?
>
>> I have this function ...
>
> func getArea(base, side int64) float64 {
>> var height, fSide, area float64
>> fSide = float64(side)
>> halfBase := float64(base) / 2.0
>> height = math.Sqrt(fSide*fSide - halfBase*halfBase)
>> area = halfBase * height
>> fmt.Printf("halfBase: %f, height: %f, Area: %f\n", halfBase, height, area)
>>
>
>
>> hb2 := 151414.5
>> h2 := 262256.452301
>> fmt.Printf("Area 2: %f\n", hb2 * h2)
>>
>
>
>> return area
>> }
>
>
> When I call it with `result := getArea(302829, 302828)`, I get this
> output ...
>
> halfBase: 151414.500000, height: 262256.452301, Area: 39709429597.000000
>> Area 2: 39709429596.929764
>
>
> I could see how some kind of rounding could produce the first Area value.
> But in that case, why wouldn't Area2 be rounded as well?
>
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