From 1ac9e54296c99367b2d0a1baa70324225a3f8533 Mon Sep 17 00:00:00 2001
From: Corwin Kuiper <corwin@kuiper.dev>
Date: Tue, 8 Jun 2021 17:08:05 +0100
Subject: [PATCH] fix sin implementation

---
 agb/src/number.rs | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/agb/src/number.rs b/agb/src/number.rs
index bb344929..493084c4 100644
--- a/agb/src/number.rs
+++ b/agb/src/number.rs
@@ -289,7 +289,7 @@ impl<I: FixedWidthSignedInteger, const N: usize> Num<I, N> {
     pub fn sin(self) -> Self {
         let one: Self = I::one().into();
         let four: I = 4.into();
-        (self - one / four).cos()
+        (self + one / four).cos()
     }
 }