From 5fa1395545a3bc9435795c6f46e3f287bcfa05e2 Mon Sep 17 00:00:00 2001
From: Rogerluo <rogerluo.rl18@gmail.com>
Date: Sat, 26 Sep 2020 17:21:55 -0400
Subject: [PATCH] Update src/instruct.jl

Co-authored-by: Leo <cacate0129@gmail.com>
---
 src/instruct.jl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/src/instruct.jl b/src/instruct.jl
index 509ad48..6638728 100644
--- a/src/instruct.jl
+++ b/src/instruct.jl
@@ -356,7 +356,7 @@ function YaoBase.instruct!(
         (loc, )::Tuple{Int},
         theta::Number
     ) where {T, N}
-    a, b = cos(theta / 2), sin(theta / 2)
+    b, a = sincos(theta / 2)
     instruct_kernel(state, loc, 1 << (loc - 1), 1 << loc, a, -b, b, a)
     return state
 end