fastnum2 0.3.5

fork of Fast decimal numbers library
Documentation 
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use crate::decimal::{
    dec::math::{consts::Consts, sin::sin, sub::sub},
    Decimal,
};

type D<const N: usize> = Decimal<N>;

#[inline]
pub(crate) const fn cos<const N: usize>(x: D<N>) -> D<N> {
    sin(sub(Consts::FRAC_PI_2, x))
}