From dec09333a3c357cc72c52c5a9de9590cd001d721 Mon Sep 17 00:00:00 2001
From: Luke Wilde <lukew@serenityos.org>
Date: Mon, 27 Feb 2023 18:01:41 +0000
Subject: [PATCH] LibGfx: Add method to Matrix that determines if the matrix is
 invertible

---
 Userland/Libraries/LibGfx/Matrix.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/Userland/Libraries/LibGfx/Matrix.h b/Userland/Libraries/LibGfx/Matrix.h
index 4358489cd9..718b4d4aa6 100644
--- a/Userland/Libraries/LibGfx/Matrix.h
+++ b/Userland/Libraries/LibGfx/Matrix.h
@@ -223,6 +223,11 @@ public:
         return result;
     }
 
+    constexpr bool is_invertible() const
+    {
+        return determinant() != 0.0;
+    }
+
 private:
     T m_elements[N][N];
 };