8000 What is exactly approximate RcpPolyXX methods in FixedUtils.cs? · Issue #12 · XMunkki/FixPointCS · GitHub
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What is exactly approximate RcpPolyXX methods in FixedUtils.cs? #12

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KichangKim opened this issue Jul 19, 2022 · 0 comments
Open

What is exactly approximate RcpPolyXX methods in FixedUtils.cs? #12

KichangKim opened this issue Jul 19, 2022 · 0 comments

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@KichangKim
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KichangKim commented Jul 19, 2022 •
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Hi. I'm studying fixed point arithmetic and this FixPointCS is excellent material.

My question is, what is RcpPolyXX approximate? 1/x or 1/(x + 1)?

In Div() method, it used with one subtracted value from original value, like int res = FixedUtil.RcpPoly6(n - ONE);, not FixedUtil.RcpPoly(n) so it is quite confusing.
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