pan>Written by </span><span style=' font-weight: bold;'>Francisco Javier Ramírez-Gil</span><span>, </span><a href = "http://fjramireg@gmail.com"><span>fjramireg@gmail.com</span></a></div><div  class = 'S1'><span>Code site:</span></div><ul  class = 'S14'><li  class = 'S15'><a href = "https://github.com/fjramireg/StiffMa"><span>https://github.com/fjramireg/StiffMa</span></a></li><li  class = 'S15'><a href = "https://www.mathworks.com/matlabcentral/fileexchange/76947-stiffma"><span>https://www.mathworks.com/m