Diff of the two buildlogs:

--
--- b1/build.log	2024-05-13 15:21:17.045685807 +0000
+++ b2/build.log	2024-05-13 15:27:12.130574802 +0000
@@ -1,6 +1,6 @@
 I: pbuilder: network access will be disabled during build
-I: Current time: Mon May 13 03:14:24 -12 2024
-I: pbuilder-time-stamp: 1715613264
+I: Current time: Tue May 14 05:21:29 +14 2024
+I: pbuilder-time-stamp: 1715613689
 I: Building the build Environment
 I: extracting base tarball [/var/cache/pbuilder/trixie-reproducible-base.tgz]
 I: copying local configuration
@@ -26,52 +26,84 @@
 dpkg-source: info: unpacking octave-splines_1.3.5-2.debian.tar.xz
 I: Not using root during the build.
 I: Installing the build-deps
-I: user script /srv/workspace/pbuilder/12621/tmp/hooks/D02_print_environment starting
+I: user script /srv/workspace/pbuilder/32763/tmp/hooks/D01_modify_environment starting
+debug: Running on virt32a.
+I: Changing host+domainname to test build reproducibility
+I: Adding a custom variable just for the fun of it...
+I: Changing /bin/sh to bash
+'/bin/sh' -> '/bin/bash'
+lrwxrwxrwx 1 root root 9 May 13 15:21 /bin/sh -> /bin/bash
+I: Setting pbuilder2's login shell to /bin/bash
+I: Setting pbuilder2's GECOS to second user,second room,second work-phone,second home-phone,second other
+I: user script /srv/workspace/pbuilder/32763/tmp/hooks/D01_modify_environment finished
+I: user script /srv/workspace/pbuilder/32763/tmp/hooks/D02_print_environment starting
 I: set
-  BUILDDIR='/build/reproducible-path'
-  BUILDUSERGECOS='first user,first room,first work-phone,first home-phone,first other'
-  BUILDUSERNAME='pbuilder1'
-  BUILD_ARCH='armhf'
-  DEBIAN_FRONTEND='noninteractive'
-  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=5 '
-  DISTRIBUTION='trixie'
-  HOME='/root'
-  HOST_ARCH='armhf'
+  BASH=/bin/sh
+  BASHOPTS=checkwinsize:cmdhist:complete_fullquote:extquote:force_fignore:globasciiranges:globskipdots:hostcomplete:interactive_comments:patsub_replacement:progcomp:promptvars:sourcepath
+  BASH_ALIASES=()
+  BASH_ARGC=()
+  BASH_ARGV=()
+  BASH_CMDS=()
+  BASH_LINENO=([0]="12" [1]="0")
+  BASH_LOADABLES_PATH=/usr/local/lib/bash:/usr/lib/bash:/opt/local/lib/bash:/usr/pkg/lib/bash:/opt/pkg/lib/bash:.
+  BASH_SOURCE=([0]="/tmp/hooks/D02_print_environment" [1]="/tmp/hooks/D02_print_environment")
+  BASH_VERSINFO=([0]="5" [1]="2" [2]="21" [3]="1" [4]="release" [5]="arm-unknown-linux-gnueabihf")
+  BASH_VERSION='5.2.21(1)-release'
+  BUILDDIR=/build/reproducible-path
+  BUILDUSERGECOS='second user,second room,second work-phone,second home-phone,second other'
+  BUILDUSERNAME=pbuilder2
+  BUILD_ARCH=armhf
+  DEBIAN_FRONTEND=noninteractive
+  DEB_BUILD_OPTIONS='buildinfo=+all reproducible=+all parallel=4 '
+  DIRSTACK=()
+  DISTRIBUTION=trixie
+  EUID=0
+  FUNCNAME=([0]="Echo" [1]="main")
+  GROUPS=()
+  HOME=/root
+  HOSTNAME=i-capture-the-hostname
+  HOSTTYPE=arm
+  HOST_ARCH=armhf
   IFS=' 	
   '
-  INVOCATION_ID='4479c9d00d454743ac93421a54d32363'
-  LANG='C'
-  LANGUAGE='en_US:en'
-  LC_ALL='C'
-  MAIL='/var/mail/root'
-  OPTIND='1'
-  PATH='/usr/sbin:/usr/bin:/sbin:/bin:/usr/games'
-  PBCURRENTCOMMANDLINEOPERATION='build'
-  PBUILDER_OPERATION='build'
-  PBUILDER_PKGDATADIR='/usr/share/pbuilder'
-  PBUILDER_PKGLIBDIR='/usr/lib/pbuilder'
-  PBUILDER_SYSCONFDIR='/etc'
-  PPID='12621'
-  PS1='# '
-  PS2='> '
+  INVOCATION_ID=c168aafa124940a8b15208c747596d09
+  LANG=C
+  LANGUAGE=it_CH:it
+  LC_ALL=C
+  MACHTYPE=arm-unknown-linux-gnueabihf
+  MAIL=/var/mail/root
+  OPTERR=1
+  OPTIND=1
+  OSTYPE=linux-gnueabihf
+  PATH=/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path
+  PBCURRENTCOMMANDLINEOPERATION=build
+  PBUILDER_OPERATION=build
+  PBUILDER_PKGDATADIR=/usr/share/pbuilder
+  PBUILDER_PKGLIBDIR=/usr/lib/pbuilder
+  PBUILDER_SYSCONFDIR=/etc
+  PIPESTATUS=([0]="0")
+  POSIXLY_CORRECT=y
+  PPID=32763
   PS4='+ '
-  PWD='/'
-  SHELL='/bin/bash'
-  SHLVL='2'
-  SUDO_COMMAND='/usr/bin/timeout -k 18.1h 18h /usr/bin/ionice -c 3 /usr/bin/nice /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.GzY3ygVn/pbuilderrc_OnIJ --distribution trixie --hookdir /etc/pbuilder/first-build-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.GzY3ygVn/b1 --logfile b1/build.log octave-splines_1.3.5-2.dsc'
-  SUDO_GID='114'
-  SUDO_UID='109'
-  SUDO_USER='jenkins'
-  TERM='unknown'
-  TZ='/usr/share/zoneinfo/Etc/GMT+12'
-  USER='root'
-  _='/usr/bin/systemd-run'
-  http_proxy='http://10.0.0.15:3142/'
+  PWD=/
+  SHELL=/bin/bash
+  SHELLOPTS=braceexpand:errexit:hashall:interactive-comments:posix
+  SHLVL=3
+  SUDO_COMMAND='/usr/bin/timeout -k 24.1h 24h /usr/bin/ionice -c 3 /usr/bin/nice -n 11 /usr/bin/unshare --uts -- /usr/sbin/pbuilder --build --configfile /srv/reproducible-results/rbuild-debian/r-b-build.GzY3ygVn/pbuilderrc_L1t4 --distribution trixie --hookdir /etc/pbuilder/rebuild-hooks --debbuildopts -b --basetgz /var/cache/pbuilder/trixie-reproducible-base.tgz --buildresult /srv/reproducible-results/rbuild-debian/r-b-build.GzY3ygVn/b2 --logfile b2/build.log octave-splines_1.3.5-2.dsc'
+  SUDO_GID=113
+  SUDO_UID=107
+  SUDO_USER=jenkins
+  TERM=unknown
+  TZ=/usr/share/zoneinfo/Etc/GMT-14
+  UID=0
+  USER=root
+  _='I: set'
+  http_proxy=http://10.0.0.15:3142/
 I: uname -a
-  Linux ff64a 6.1.0-21-arm64 #1 SMP Debian 6.1.90-1 (2024-05-03) aarch64 GNU/Linux
+  Linux i-capture-the-hostname 6.1.0-21-armmp-lpae #1 SMP Debian 6.1.90-1 (2024-05-03) armv7l GNU/Linux
 I: ls -l /bin
-  lrwxrwxrwx 1 root root 7 May 12 11:42 /bin -> usr/bin
-I: user script /srv/workspace/pbuilder/12621/tmp/hooks/D02_print_environment finished
+  lrwxrwxrwx 1 root root 7 May 13 11:24 /bin -> usr/bin
+I: user script /srv/workspace/pbuilder/32763/tmp/hooks/D02_print_environment finished
  -> Attempting to satisfy build-dependencies
  -> Creating pbuilder-satisfydepends-dummy package
 Package: pbuilder-satisfydepends-dummy
@@ -616,7 +648,7 @@
 Get: 505 http://deb.debian.org/debian trixie/main armhf gfortran armhf 4:13.2.0-7 [1432 B]
 Get: 506 http://deb.debian.org/debian trixie/main armhf octave-dev armhf 8.4.0-1+b4 [951 kB]
 Get: 507 http://deb.debian.org/debian trixie/main armhf dh-octave all 1.8.0 [22.7 kB]
-Fetched 176 MB in 7s (24.7 MB/s)
+Fetched 176 MB in 17s (10.3 MB/s)
 debconf: delaying package configuration, since apt-utils is not installed
 Selecting previously unselected package netbase.
 (Reading database ... 
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(Reading database ... 90%
(Reading database ... 95%
(Reading database ... 100%
(Reading database ... 19445 files and directories currently installed.)
@@ -2700,7 +2732,11 @@
 Building tag database...
  -> Finished parsing the build-deps
 I: Building the package
-I: Running cd /build/reproducible-path/octave-splines-1.3.5/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games" HOME="/nonexistent/first-build" dpkg-genchanges -S  > ../octave-splines_1.3.5-2_source.changes
+I: user script /srv/workspace/pbuilder/32763/tmp/hooks/A99_set_merged_usr starting
+Not re-configuring usrmerge for trixie
+I: user script /srv/workspace/pbuilder/32763/tmp/hooks/A99_set_merged_usr finished
+hostname: Name or service not known
+I: Running cd /build/reproducible-path/octave-splines-1.3.5/ && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-buildpackage -us -uc -b && env PATH="/usr/sbin:/usr/bin:/sbin:/bin:/usr/games:/i/capture/the/path" HOME="/nonexistent/second-build" dpkg-genchanges -S  > ../octave-splines_1.3.5-2_source.changes
 dpkg-buildpackage: info: source package octave-splines
 dpkg-buildpackage: info: source version 1.3.5-2
 dpkg-buildpackage: info: source distribution unstable
@@ -2737,6 +2773,108 @@
 Checking package...
 Run the unit tests...
 Checking m files ...
+[inst/bin_values.m]
+>>>>> /build/reproducible-path/octave-splines-1.3.5/inst/bin_values.m
+***** shared x, y, x_bin, y_bin, w_bin, n_bin
+ x = [1; 2; 2; 3; 4];
+ y = [0 0; 1 1; 2 1; 3 4; 5 NaN];
+ [x_bin y_bin w_bin n_bin] = bin_values(x, y);
+***** assert (x_bin, [1; 7/3]);
+***** assert (y_bin, [0 0; 2 2]);
+***** assert (!any(isfinite(w_bin(1, :))));
+***** assert (w_bin(2, :), [3 1]);
+***** assert (n_bin, [1; 3]);
+5 tests, 5 passed, 0 known failure, 0 skipped
+[inst/tps_val.m]
+>>>>> /build/reproducible-path/octave-splines-1.3.5/inst/tps_val.m
+***** shared x,y,c,xi
+ x = ([1:10 10.5 11.3])'; y = sin(x);
+ c = tpaps(x,y,1);
+***** assert (tpaps(x,y,1,x), tps_val(x,c,x), 100*eps);
+ x = ((1 ./ (1:100))' - 0.5) * ([0.2 0.6]);
+ y = x(:, 1) .^ 2 + x(:, 2) .^ 2;
+ c = tpaps(x,y,1);
+***** assert (tpaps(x,y,1,x), tps_val(x,c,x), 100*eps);
+***** assert (tps_val(x,c,x,true), tps_val(x,c,x,false), 100*eps);
+3 tests, 3 passed, 0 known failure, 0 skipped
+[inst/regularization2D.m]
+>>>>> /build/reproducible-path/octave-splines-1.3.5/inst/regularization2D.m
+***** demo
+ M = 100;
+ lambda1 = 0; lambda2 = 0.05;
+ x = 2*rand(M,1)-1;     y = 2*rand(M,1)-1;
+ z = x.*y + 0.1*randn(M,1);
+ data = [x,y,z];
+ [grid,u] = regularization2D(data,[-1 1;-1 1],[50 50],lambda1,lambda2);
+ figure()
+ mesh(grid.x, grid.y,u)
+ xlabel('x'); ylabel('y');
+ hold on
+ plot3(data(:,1),data(:,2),data(:,3),'*b','Markersize',2)
+ hold off
+ view([30,30]);
+***** demo
+ lambda1 = 0; lambda2 = 0.01;
+ M = 4;  angles = [1:M]/M*2*pi;  
+ data = zeros(M+1,3);  data(M+1,3) = 1;
+ data(1:M,1) = cos(angles); data(1:M,2) = sin(angles);
+ [grid,u] = regularization2D(data,[-1.5 1.5;-1.5 1.5],[50 50],lambda1,lambda2);
+ figure()
+ mesh(grid.x, grid.y,u)
+ xlabel('x'); ylabel('y');
+ hold on
+ plot3(data(:,1),data(:,2),data(:,3),'*b','Markersize',2)
+ hold off
+***** test
+ data = [0,0,0;1,2,3;2,0,2;0,2,2];  % data on z = x+y
+ lambda1 = 0.0 ; lambda2 = 0.1;
+ [grid,u,u_valid] = regularization2D(data,[-0.2 2.2; -0.2,2.2],[11,12],lambda1,lambda2);
+ assert(norm(data-u_valid),0,1e-12)
+ assert(norm(grid.x(:) + grid.y(:) - u(:)),0,1e-10)
+***** test
+ data = [0,0,0;1,1,3;2,1,2;0,2,-2;-1.5,-1,0;-2,2,0];
+ lambda1 = 0.001 ; lambda2 = 0.01;
+ [grid,u,u_valid] = regularization2D(data,[-2.1 2.1;-2.1,2.1],[40,50],lambda1,lambda2);
+  value_at_data = [   1.233351091378741e-01
+   2.694454049778803e+00
+   2.102786670571836e+00
+  -1.870655633783656e+00
+  -1.635243922246946e-02
+  -3.356775648311422e-02];
+ assert(norm(value_at_data-u_valid(:,3)),0,1e-12)
+2 tests, 2 passed, 0 known failure, 0 skipped
+[inst/csaps.m]
+>>>>> /build/reproducible-path/octave-splines-1.3.5/inst/csaps.m
+***** shared x,y,xi,yi,p,sigma2,unc_yi,df
+ x = ([1:10 10.5 11.3])'; y = sin(x); xi = linspace(min(x), max(x), 30)';
+***** assert (csaps(x,y,1,x), y, 10*eps);
+***** assert (csaps(x,y,1,x'), y', 10*eps);
+***** assert (csaps(x',y',1,x'), y', 10*eps);
+***** assert (csaps(x',y',1,x), y, 10*eps);
+***** assert (csaps(x,[y 2*y],1,x)', [y 2*y], 10*eps);
+ [yi,p,sigma2,unc_yi,df] = csaps(x,y,1,xi);
+***** assert (yi, ppval(csape(x, y, "variational"), xi), eps);
+***** assert (p, 1);
+***** assert (unc_yi, zeros(size(xi)));
+***** assert (sigma2, 0);
+***** assert (df, numel(x));
+ [yi,p,~,~,df] = csaps(x,y,0,xi);
+***** assert (yi, polyval(polyfit(x, y, 1), xi), 10*eps);
+***** assert (p, 0);
+***** assert (df, 2, 100*eps);
+13 tests, 13 passed, 0 known failure, 0 skipped
+[inst/dedup.m]
+>>>>> /build/reproducible-path/octave-splines-1.3.5/inst/dedup.m
+***** shared x, y, w
+ x = [1; 2; 2; 3; 4];
+ y = [0 0; 1 1; 2 1; 3 4; 5 NaN];
+ w = [1; 0.1; 1; 0.5; 1];
+***** assert (nthargout(1:3, @dedup, x, y, ones(size(x))), nthargout(1:3, @dedup, x, y))
+ [x y w] = dedup(x, y, w);
+***** assert (x, [1; 2; 3]);
+***** assert (y, [0 0; 21/11 1; 3 4], 10*eps);
+***** assert (w, [1; 1.1; 0.5]);
+4 tests, 4 passed, 0 known failure, 0 skipped
 [inst/csaps_sel.m]
 >>>>> /build/reproducible-path/octave-splines-1.3.5/inst/csaps_sel.m
 ***** shared x,y,ret,p,sigma2,unc_y
@@ -2760,21 +2898,15 @@
  legend ('Given data', 'Spline fit')
  title ('Spline smoothing with synthetic data sampled from sine wave with noise')
 5 tests, 5 passed, 0 known failure, 0 skipped
-[inst/tps_val_der.m]
->>>>> /build/reproducible-path/octave-splines-1.3.5/inst/tps_val_der.m
-***** shared a,b,x,y,x1,x2,y1,c,dy,dy0
- a = 2; b = -3; x = ([1:2:10 10.5 11.3])'; y = a*x;
- c = tpaps(x,y,1);
-***** assert (a*ones(size(x)), tps_val_der(x,c,x), 1E3*eps);
- [x1 x2] = meshgrid(x, x);
- y1 = a*x1+b*x2;
- c = tpaps([x1(:) x2(:)],y1(:),0.5);
- dy = tps_val_der([x1(:) x2(:)],c,[x1(:) x2(:)]);
- dy0 = tps_val_der([x1(:) x2(:)],c,[x1(:) x2(:)],false);
-***** assert (a*ones(size(x1(:))), dy(:, 1), 1E3*eps);
-***** assert (b*ones(size(x2(:))), dy(:, 2), 1E3*eps); 
-***** assert (dy0, dy, 1E3*eps);
-4 tests, 4 passed, 0 known failure, 0 skipped
+[inst/tpaps.m]
+>>>>> /build/reproducible-path/octave-splines-1.3.5/inst/tpaps.m
+***** shared x,y
+ x = ([1:10 10.5 11.3])'; y = sin(x);
+***** assert (tpaps(x,y,1,x), y, 1E3*eps);
+ x = ((1 ./ (1:100))' - 0.5) * ([0.2 0.6]);
+ y = x(:, 1) .^ 2 + x(:, 2) .^ 2;
+***** assert (tpaps(x,y,1,x), y, 1E-10);
+2 tests, 2 passed, 0 known failure, 0 skipped
 [inst/regularization.m]
 >>>>> /build/reproducible-path/octave-splines-1.3.5/inst/regularization.m
 ***** demo
@@ -2848,38 +2980,6 @@
  [grid,u] = regularization([x;x.^2]',[-2,2],20,F1,F2);
  assert(u(11),7.330959483903200e-03,1e-8)
 2 tests, 2 passed, 0 known failure, 0 skipped
-[inst/bin_values.m]
->>>>> /build/reproducible-path/octave-splines-1.3.5/inst/bin_values.m
-***** shared x, y, x_bin, y_bin, w_bin, n_bin
- x = [1; 2; 2; 3; 4];
- y = [0 0; 1 1; 2 1; 3 4; 5 NaN];
- [x_bin y_bin w_bin n_bin] = bin_values(x, y);
-***** assert (x_bin, [1; 7/3]);
-***** assert (y_bin, [0 0; 2 2]);
-***** assert (!any(isfinite(w_bin(1, :))));
-***** assert (w_bin(2, :), [3 1]);
-***** assert (n_bin, [1; 3]);
-5 tests, 5 passed, 0 known failure, 0 skipped
-[inst/csaps.m]
->>>>> /build/reproducible-path/octave-splines-1.3.5/inst/csaps.m
-***** shared x,y,xi,yi,p,sigma2,unc_yi,df
- x = ([1:10 10.5 11.3])'; y = sin(x); xi = linspace(min(x), max(x), 30)';
-***** assert (csaps(x,y,1,x), y, 10*eps);
-***** assert (csaps(x,y,1,x'), y', 10*eps);
-***** assert (csaps(x',y',1,x'), y', 10*eps);
-***** assert (csaps(x',y',1,x), y, 10*eps);
-***** assert (csaps(x,[y 2*y],1,x)', [y 2*y], 10*eps);
- [yi,p,sigma2,unc_yi,df] = csaps(x,y,1,xi);
-***** assert (yi, ppval(csape(x, y, "variational"), xi), eps);
-***** assert (p, 1);
-***** assert (unc_yi, zeros(size(xi)));
-***** assert (sigma2, 0);
-***** assert (df, numel(x));
- [yi,p,~,~,df] = csaps(x,y,0,xi);
-***** assert (yi, polyval(polyfit(x, y, 1), xi), 10*eps);
-***** assert (p, 0);
-***** assert (df, 2, 100*eps);
-13 tests, 13 passed, 0 known failure, 0 skipped
 [inst/csape.m]
 >>>>> /build/reproducible-path/octave-splines-1.3.5/inst/csape.m
 ***** shared x,x2,y,cond,pp,pp1,pp2,h,valc,xi,yi
@@ -2991,85 +3091,21 @@
 ***** assert (ppval(ppder(pp), x(1)), ppval(ppder(pp), x(end)), 10*eps);
 ***** assert (ppval(ppder(pp, 2), x(1)), ppval(ppder(pp, 2), x(end)), 10*eps);
 85 tests, 85 passed, 0 known failure, 0 skipped
-[inst/tpaps.m]
->>>>> /build/reproducible-path/octave-splines-1.3.5/inst/tpaps.m
-***** shared x,y
- x = ([1:10 10.5 11.3])'; y = sin(x);
-***** assert (tpaps(x,y,1,x), y, 1E3*eps);
- x = ((1 ./ (1:100))' - 0.5) * ([0.2 0.6]);
- y = x(:, 1) .^ 2 + x(:, 2) .^ 2;
-***** assert (tpaps(x,y,1,x), y, 1E-10);
-2 tests, 2 passed, 0 known failure, 0 skipped
-[inst/dedup.m]
->>>>> /build/reproducible-path/octave-splines-1.3.5/inst/dedup.m
-***** shared x, y, w
- x = [1; 2; 2; 3; 4];
- y = [0 0; 1 1; 2 1; 3 4; 5 NaN];
- w = [1; 0.1; 1; 0.5; 1];
-***** assert (nthargout(1:3, @dedup, x, y, ones(size(x))), nthargout(1:3, @dedup, x, y))
- [x y w] = dedup(x, y, w);
-***** assert (x, [1; 2; 3]);
-***** assert (y, [0 0; 21/11 1; 3 4], 10*eps);
-***** assert (w, [1; 1.1; 0.5]);
-4 tests, 4 passed, 0 known failure, 0 skipped
-[inst/regularization2D.m]
->>>>> /build/reproducible-path/octave-splines-1.3.5/inst/regularization2D.m
-***** demo
- M = 100;
- lambda1 = 0; lambda2 = 0.05;
- x = 2*rand(M,1)-1;     y = 2*rand(M,1)-1;
- z = x.*y + 0.1*randn(M,1);
- data = [x,y,z];
- [grid,u] = regularization2D(data,[-1 1;-1 1],[50 50],lambda1,lambda2);
- figure()
- mesh(grid.x, grid.y,u)
- xlabel('x'); ylabel('y');
- hold on
- plot3(data(:,1),data(:,2),data(:,3),'*b','Markersize',2)
- hold off
- view([30,30]);
-***** demo
- lambda1 = 0; lambda2 = 0.01;
- M = 4;  angles = [1:M]/M*2*pi;  
- data = zeros(M+1,3);  data(M+1,3) = 1;
- data(1:M,1) = cos(angles); data(1:M,2) = sin(angles);
- [grid,u] = regularization2D(data,[-1.5 1.5;-1.5 1.5],[50 50],lambda1,lambda2);
- figure()
- mesh(grid.x, grid.y,u)
- xlabel('x'); ylabel('y');
- hold on
- plot3(data(:,1),data(:,2),data(:,3),'*b','Markersize',2)
- hold off
-***** test
- data = [0,0,0;1,2,3;2,0,2;0,2,2];  % data on z = x+y
- lambda1 = 0.0 ; lambda2 = 0.1;
- [grid,u,u_valid] = regularization2D(data,[-0.2 2.2; -0.2,2.2],[11,12],lambda1,lambda2);
- assert(norm(data-u_valid),0,1e-12)
- assert(norm(grid.x(:) + grid.y(:) - u(:)),0,1e-10)
-***** test
- data = [0,0,0;1,1,3;2,1,2;0,2,-2;-1.5,-1,0;-2,2,0];
- lambda1 = 0.001 ; lambda2 = 0.01;
- [grid,u,u_valid] = regularization2D(data,[-2.1 2.1;-2.1,2.1],[40,50],lambda1,lambda2);
-  value_at_data = [   1.233351091378741e-01
-   2.694454049778803e+00
-   2.102786670571836e+00
-  -1.870655633783656e+00
-  -1.635243922246946e-02
-  -3.356775648311422e-02];
- assert(norm(value_at_data-u_valid(:,3)),0,1e-12)
-2 tests, 2 passed, 0 known failure, 0 skipped
-[inst/tps_val.m]
->>>>> /build/reproducible-path/octave-splines-1.3.5/inst/tps_val.m
-***** shared x,y,c,xi
- x = ([1:10 10.5 11.3])'; y = sin(x);
- c = tpaps(x,y,1);
-***** assert (tpaps(x,y,1,x), tps_val(x,c,x), 100*eps);
- x = ((1 ./ (1:100))' - 0.5) * ([0.2 0.6]);
- y = x(:, 1) .^ 2 + x(:, 2) .^ 2;
+[inst/tps_val_der.m]
+>>>>> /build/reproducible-path/octave-splines-1.3.5/inst/tps_val_der.m
+***** shared a,b,x,y,x1,x2,y1,c,dy,dy0
+ a = 2; b = -3; x = ([1:2:10 10.5 11.3])'; y = a*x;
  c = tpaps(x,y,1);
-***** assert (tpaps(x,y,1,x), tps_val(x,c,x), 100*eps);
-***** assert (tps_val(x,c,x,true), tps_val(x,c,x,false), 100*eps);
-3 tests, 3 passed, 0 known failure, 0 skipped
+***** assert (a*ones(size(x)), tps_val_der(x,c,x), 1E3*eps);
+ [x1 x2] = meshgrid(x, x);
+ y1 = a*x1+b*x2;
+ c = tpaps([x1(:) x2(:)],y1(:),0.5);
+ dy = tps_val_der([x1(:) x2(:)],c,[x1(:) x2(:)]);
+ dy0 = tps_val_der([x1(:) x2(:)],c,[x1(:) x2(:)],false);
+***** assert (a*ones(size(x1(:))), dy(:, 1), 1E3*eps);
+***** assert (b*ones(size(x2(:))), dy(:, 2), 1E3*eps); 
+***** assert (dy0, dy, 1E3*eps);
+4 tests, 4 passed, 0 known failure, 0 skipped
 Checking C++ files ...
 Done running the unit tests.
 Summary: 125 tests, 125 passed, 0 known failures, 0 skipped
@@ -3098,12 +3134,14 @@
 dpkg-buildpackage: info: binary-only upload (no source included)
 dpkg-genchanges: info: not including original source code in upload
 I: copying local configuration
+I: user script /srv/workspace/pbuilder/32763/tmp/hooks/B01_cleanup starting
+I: user script /srv/workspace/pbuilder/32763/tmp/hooks/B01_cleanup finished
 I: unmounting dev/ptmx filesystem
 I: unmounting dev/pts filesystem
 I: unmounting dev/shm filesystem
 I: unmounting proc filesystem
 I: unmounting sys filesystem
 I: cleaning the build env 
-I: removing directory /srv/workspace/pbuilder/12621 and its subdirectories
-I: Current time: Mon May 13 03:21:11 -12 2024
-I: pbuilder-time-stamp: 1715613671
+I: removing directory /srv/workspace/pbuilder/32763 and its subdirectories
+I: Current time: Tue May 14 05:27:07 +14 2024
+I: pbuilder-time-stamp: 1715614027