Method reduce

src/complex/matrix.rs:1735–1741

(&self, init: T, f: F)

    }

    fn reduce<F, T>(&self, init: T, f: F) -> C64
    where
        F: Fn(C64, C64) -> C64,
        T: Into<C64>,
    {
        self.data.iter().fold(init.into(), |x, y| f(x, *y))
    }

    fn zip_with<F>(&self, f: F, other: &ComplexMatrix) -> Self
    where