C++ Weekly - Ep 228 - C++20's (High Precision) Mathematical Constants

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While this is certainly a great addition, I think the "real deal" for the math library would be to have constexpr <cmath> functions. This would be very handy to generate trigonometric tables at compile time or pre-calculating vector lengths or unit vectors.

benoitrousseau

3.1415... that's all. New item on bucket list: Memorize at least 10 decimal places of pi.

simonbeer

Seems like the audio on this one is a bit broken.

ianpan

3 more digits of precision! All of the precision!

sucidity

Sound good. But im wondering why do we need the extra _v versions of these constants?
You could simply define them with a default template type. So you can just use std::numbers::pi as well as std::numbers::pi<long double>. Which in my opinion looks a bit nicer.

MegaKillzor

I would like to see compilers map some of these constants into the built-in chip constants (Intel as PI and a few others) for maximum precision

stephenhowe

Hello. As you have made these playlists that are tutorials for cpp 20 and 17... Is there a chance you will do playlists for cpp 11 and 14? Thanks a lot!

nickst

Хм, почему я это пропустил мимо ушей и всё это время использовал старые константы?

VladykaVladykov

Anyone else having crackles in the audio on this one?

NimelrianSC

Are those generic templates doing calculations at compile time or just a bunch of constants for well known types? E.g. how to get pi for a user defined floating point type?

petermuller

The dislikes are people using 4.*atan(1.)

jakubgaecki

But who is righticus is the real question...

vertigo

Given stuff I'm hearing with my naive ears around L1 cache, I wonder if there are things to do to make such pieces more L1 cache compatible?

xenocampanoli

C++ Weekly - Ep 228 - C++20's (High Precision) Mathematical Constants

C++ Weekly - Ep 228 - C++20's (High Precision) Mathematical Constants

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