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Improves FMA mul_add implementation #150

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Improves FMA mul_add implementation #150

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46d2036
use auxiliary variables as in documented formula
PaulXiCao Oct 25, 2025
d2481a0
recommended impl from #148
PaulXiCao Oct 25, 2025
d984ef8
update method documentation formula
PaulXiCao Oct 25, 2025
00ac3a2
add trait bound
PaulXiCao Oct 25, 2025
bed1daa
move trait bounds into where clause
PaulXiCao Oct 25, 2025
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recommended impl from #148
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@PaulXiCao
PaulXiCao committed Oct 25, 2025
commit d2481a0089d6de45abca437a48fe8dd4b0f69ef5
4 changes: 3 additions & 1 deletion src/lib.rs
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Original file line number Diff line number Diff line change
Expand Up @@ -797,7 +797,9 @@ impl<T: Clone + Num + MulAdd<Output = T>> MulAdd<Complex<T>> for Complex<T> {
let (c, d) = (other.re, other.im);
let (e, f) = (add.re, add.im);

let re = a.clone().mul_add(c.clone(), e) - (b.clone() * d.clone()); // FIXME: use mulsub when available in rust
let re = a
.clone()
.mul_add(c.clone(), -b.clone().mul_add(d.clone(), -e)); // FIXME: use mulsub when available in rust
let im = a.mul_add(d, b.mul_add(c, f));
Complex::new(re, im)
}
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