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</o:shapelayout></xml><![endif]--></head><body lang=EN-GB link=blue vlink=purple><div class=WordSection1><p class=MsoNormal>Hi All<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal>One more problem to report. <o:p></o:p></p><p class=MsoNormal style='text-autospace:none'>In time-resolved modality (file ‘<span style='font-size:13.0pt;font-family:"Courier New";color:black'>femdata_stnd_tr.m</span>’) the incomplete Cholesky factorisation is used to generate a preconditioner:<o:p></o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:13.0pt;font-family:"Courier New";color:forestgreen'>%         R = cholinc(MASS1,1e-3);</span><span style='font-size:12.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'>However, Mathworks removed this function completely since it was not a true incomplete Cholesky (it utilized incomplete LU with pivoting).<o:p></o:p></p><p class=MsoNormal style='text-autospace:none'>I suggest to replace the missing function by:<o:p></o:p></p><p class=MsoNormal style='text-autospace:none'><span style='font-size:13.0pt;font-family:"Courier New";color:black'>R = ichol(MASS1,struct(</span><span style='font-size:13.0pt;font-family:"Courier New";color:#A020F0'>'type'</span><span style='font-size:13.0pt;font-family:"Courier New";color:black'>,</span><span style='font-size:13.0pt;font-family:"Courier New";color:#A020F0'>'ict'</span><span style='font-size:13.0pt;font-family:"Courier New";color:black'>,</span><span style='font-size:13.0pt;font-family:"Courier New";color:#A020F0'>'droptol'</span><span style='font-size:13.0pt;font-family:"Courier New";color:black'>,1e-3,</span><span style='font-size:13.0pt;font-family:"Courier New";color:#A020F0'>'shape'</span><span style='font-size:13.0pt;font-family:"Courier New";color:black'>,</span><span style='font-size:13.0pt;font-family:"Courier New";color:#A020F0'>'upper'</span><span style='font-size:13.0pt;font-family:"Courier New";color:black'>));</span><span style='font-size:12.0pt;font-family:"Courier New"'><o:p></o:p></span></p><p class=MsoNormal style='text-autospace:none'>Works in my case.<o:p></o:p></p><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas;mso-fareast-language:EN-GB'>Regards<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas;mso-fareast-language:EN-GB'>Stanislaw Wojtkiewicz, PhD<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas;mso-fareast-language:EN-GB'><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas;mso-fareast-language:EN-GB'>---<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='font-family:Consolas;mso-fareast-language:EN-GB'>School of Computer Science<o:p></o:p></span></p><p class=MsoNormal><span lang=PL style='font-family:Consolas;mso-fareast-language:EN-GB'>University of Birmingham<o:p></o:p></span></p><p class=MsoNormal><span lang=PL style='font-family:Consolas;mso-fareast-language:EN-GB'>B15 2TT<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div><div id="DAB4FAD8-2DD7-40BB-A1B8-4E2AA1F9FDF2"><br />
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