Dear all, The following lines where giving no errors in Octave 3.2.4 (Ubuntu 10.10) x = linspace(0,1,10); y = sin(2*pi*3*x); pp = spline(x, y); xi = 0:0.3:1; yi = ppval(pp,xi); ppd = fnder(pp,1); dyi = ppval(ppd,xi);
In 3.3.54 and the repository version the last line gives the following error error: ppval: A(I,J,...): index to dimension 2 out of bounds; value 9 out of bound 8 error: called from: error: ppval.m at line 69, column 4 If I change xi for xi=linspace(0,8/9-eps,10); then dyi = ppval(ppd,xi); works fine Apparently the domain of the derivative gets shrinked, though there is no help in the help of any of the functions. Is this a BUG or is an undocumented fix? -- M. Sc. Juan Pablo Carbajal ----- PhD Student University of Zürich www.ailab.ch/carbajal ------------------------------------------------------------------------------ Learn how Oracle Real Application Clusters (RAC) One Node allows customers to consolidate database storage, standardize their database environment, and, should the need arise, upgrade to a full multi-node Oracle RAC database without downtime or disruption http://p.sf.net/sfu/oracle-sfdevnl _______________________________________________ Octave-dev mailing list Octave-dev@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/octave-dev
