From 35dc89477851931ab2dfc602739e6512612fb418 Mon Sep 17 00:00:00 2001
From: Toshiki Teramura <toshiki.teramura@gmail.com>
Date: Sat, 6 Feb 2021 16:35:14 +0900
Subject: [PATCH 1/2] Add Scalar::zero(), Scalar::one()

---
 src/lib.rs | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/src/lib.rs b/src/lib.rs
index dc8a64f..981be2e 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -38,7 +38,7 @@
 //! ```
 
 use num_complex::Complex;
-use num_traits::{Float, FromPrimitive, NumAssign, NumCast, NumOps, ToPrimitive, Zero};
+use num_traits::{Float, FromPrimitive, NumAssign, NumCast, NumOps, One, ToPrimitive, Zero};
 use rand::{distributions::Standard, prelude::*};
 use serde::{Deserialize, Serialize};
 use std::fmt::{Debug, Display, LowerExp, UpperExp};
@@ -72,6 +72,14 @@ pub trait Scalar:
         + NumOps<Self::Real, Self::Complex>
         + NumOps<Self::Complex, Self::Complex>;
 
+    fn zero() -> Self {
+        Zero::zero()
+    }
+
+    fn one() -> Self {
+        One::one()
+    }
+
     /// Create a new real number
     fn real<T: ToPrimitive>(re: T) -> Self::Real;
     /// Create a new complex number

From 6cbca05979217e2303d5c4545fecc327ddde6909 Mon Sep 17 00:00:00 2001
From: Toshiki Teramura <toshiki.teramura@gmail.com>
Date: Sat, 6 Feb 2021 16:36:39 +0900
Subject: [PATCH 2/2] Add trait requirement One + Zero

---
 src/lib.rs | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/lib.rs b/src/lib.rs
index 981be2e..513db84 100644
--- a/src/lib.rs
+++ b/src/lib.rs
@@ -52,6 +52,8 @@ pub trait Scalar:
     NumAssign
     + FromPrimitive
     + NumCast
+    + One
+    + Zero
     + Neg<Output = Self>
     + Copy
     + Clone