From 6e2aff6b5d5ce365107e4dfab8ab423f3da3cb07 Mon Sep 17 00:00:00 2001
From: Rasmus Munk Larsen <4643818-rmlarsen1@users.noreply.gitlab.com>
Date: Wed, 25 Feb 2026 19:48:20 -0800
Subject: [PATCH] Fix ambiguous static_cast in JacobiSVD blocking threshold

libeigen/eigen!2215

Co-authored-by: Rasmus Munk Larsen <rmlarsen@gmail.com>
---
 Eigen/src/SVD/JacobiSVD.h | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/Eigen/src/SVD/JacobiSVD.h b/Eigen/src/SVD/JacobiSVD.h
index e9c0f0df2..237ba3899 100644
--- a/Eigen/src/SVD/JacobiSVD.h
+++ b/Eigen/src/SVD/JacobiSVD.h
@@ -773,8 +773,7 @@ JacobiSVD<MatrixType, Options>& JacobiSVD<MatrixType, Options>::compute_impl(con
 #ifdef EIGEN_JACOBI_SVD_BLOCKING_THRESHOLD
       const Index blockingThreshold = EIGEN_JACOBI_SVD_BLOCKING_THRESHOLD;
 #else
-      const Index blockingThreshold =
-          static_cast<Index>(numext::sqrt(static_cast<RealScalar>(l2CacheSize() / sizeof(float))));
+      const Index blockingThreshold = static_cast<Index>(std::sqrt(static_cast<double>(l2CacheSize() / sizeof(float))));
 #endif
 
       if (n >= blockingThreshold) {