diff --git a/README.md b/README.md
index 04ec6ec..0655afb 100644
--- a/README.md
+++ b/README.md
@@ -658,6 +658,7 @@ comprehensive and high-level, you may want the Web Frameworks section.
   [``LGPL-2.1-or-later``][LGPL-2.1-or-later]
 * [ATLAS][137] - Automatically Tuned Linear Algebra Software. [``BSD-3-Clause``][BSD-3-Clause]
 * [clBLAS][439] - BLAS functions written in OpenCL. [``Apache-2.0``][Apache-2.0]
+* [cmathl][546] - A pure-C math library with a great variety of mathematical functions with CMake build support. Seeks to be close to C89/C90 compliant for portability. [``MIT``][MIT]
 * [Cuba][316] - Library for multidimensional numerical integration. [``LGPL-3.0-only``][LGPL-3.0-only]
 * [fft-c][537] - A high-performance Fourier Transform from netlib's fftpack; wrapped in a user-friendly format [``MIT``][ MIT]
 * [FFTW][70] - The Fastest Fourier Transform in the West; a highly-optimized fast Fourier transform routine. [``GPL-2.0-or-later``][GPL-2.0-or-later]
@@ -1601,3 +1602,4 @@ support for C.
 [543]: https://github.com/recp/tm
 
 [545]: https://zigguro.org/cloudgizer/
+[546]: https://scientificc.github.io/cmathl/