Subject: .^ bug - msg#00066

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Re: image (was: imshow, fileparts, moment)

On Feb 20, 2004, at 2:42 PM, John W. Eaton wrote: On 20-Feb-2004, stefan@xxxxxxxxx <stefan@xxxxxxxxx> wrote: | image viewer static | ------------------- | | It is not possible to choose which image viewer to use. | | A crude solution; add | | global image_viewer = "echo %f; gqview -t %s"; | #global image_viewer = "display %f%% %s"; | | to image/PKG_ADD. | | Then modify image.m to use it: | | global image_viewer; | im_display = sprintf (image_viewer, zoom*100, ppm_name); I think we would need to use a name that is not likely to conflict with some user variable. Perhaps it should be a built-in variable in Octave. How should the default value be determined? Rather than global variables which pollute the namespace, or built-in variables (which you can't define from script files), I prefer to use persistent variables within the function, with mlock to keep their value from being cleared when somebody does 'clear functions', and a call interface for setting and clearing them. E.g., edit('editor','vi'). Poor man's namespace? Paul Kienzle pkienzle@xxxxxxxxxxxx ------------------------------------------------------------- Octave is freely available under the terms of the GNU GPL. Octave's home on the web: http://www.octave.org How to fund new projects: http://www.octave.org/funding.html Subscription information: http://www.octave.org/archive.html -------------------------------------------------------------

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Bug when changing dimension in Octave 2.1.53

Hello, I found following BUG in Octave 2.1.53 (dont know if corrected in 2.1.54): When I rescale 2D matrix to 3D one, it clears data writen in first dimension. It can be easily shown on following set of two commands. octave:1> a(:,:)=ones(3,3) a = 1 1 1 1 1 1 1 1 1 octave:2> a(:,:,2)=2*ones(3,3) a = ans(:,:,1) = 0 0 0 0 0 0 0 0 0 ans(:,:,2) = 2 2 2 2 2 2 2 2 2 Instead of keeping ones in a(:,:,1), it clears them to zero! This bug did not appeared in previous version 2.1.52. Mashine: Linux 2.4.20-openmosix-1 and also Linux Debian. It is a version we compiled yourself. Flags for ./configure I dont know, but I dont think some were used. Jaro PS: thank you a lot for building Octave! ------------------------------------------------------------- Octave is freely available under the terms of the GNU GPL. Octave's home on the web: http://www.octave.org How to fund new projects: http://www.octave.org/funding.html Subscription information: http://www.octave.org/archive.html -------------------------------------------------------------

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.^ bug

On 14-Feb-2004, Rafael Ávila de Espíndola <rafael@xxxxxxxxxxxxxxxxxxxx> wrote: | To: bug-octave@xxxxxxxxxxxxxxxxx | Cc: rafael | Subject: .^ bug | | Bug report for Octave 2.1.53 configured for i386-pc-linux-gnu | | Description: | ----------- | | .^ and ^ return diffrent results | | Repeat-By: | --------- | octave:1> (-1)^.5 | ans = 6.1230e-17 + 1.0000e+00i | octave:2> ([-1 1]).^.5 | ans = | | NaN 1 Please try the following patch. Thanks, jwe src/ChangeLog: 2004-02-19 John W. Eaton <jwe@xxxxxxxxxxxxxxxxx> * xpow.cc (elem_xpow (const Matrix&, double)): Convert both operands to Complex if any element of A is negative. (elem_xpow (const NDArray&, double)): Likewise. Index: src/xpow.cc =================================================================== RCS file: /usr/local/cvsroot/octave/src/xpow.cc,v retrieving revision 1.36 diff -u -r1.36 xpow.cc --- src/xpow.cc 19 Dec 2003 15:37:14 -0000 1.36 +++ src/xpow.cc 19 Feb 2004 20:12:44 -0000 @@ -565,8 +565,14 @@ for (int i = 0; i < nr; i++) { OCTAVE_QUIT; + + // XXX FIXME XXX -- avoid apparent GNU libm bug by + // converting A and B to complex instead of just A. + Complex atmp (a (i, j)); - result (i, j) = pow (atmp, b); + Complex btmp (b); + + result (i, j) = pow (atmp, btmp); } retval = result; @@ -937,8 +943,14 @@ for (int i = 0; i < a.length (); i++) { OCTAVE_QUIT; - Complex atmp (a(i)); - result(i) = pow (atmp, b); + + // XXX FIXME XXX -- avoid apparent GNU libm bug by + // converting A and B to complex instead of just A. + + Complex atmp (a (i)); + Complex btmp (b); + + result(i) = pow (atmp, btmp); } retval = result; ------------------------------------------------------------- Octave is freely available under the terms of the GNU GPL. Octave's home on the web: http://www.octave.org How to fund new projects: http://www.octave.org/funding.html Subscription information: http://www.octave.org/archive.html -------------------------------------------------------------

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/usr/bin/octave: relocation error: /usr/lib/atlas/liblapack.so.2: undefined symbol: ATL_dGetNB

To: bug-octave@xxxxxxxxxxxxxxxxx Cc: rohrm Subject: /usr/bin/octave: relocation error: /usr/lib/atlas/liblapack.so.2: undefined symbol: ATL_dGetNB Bug report for Octave 2.1.50 configured for i386-pc-linux-gnu Description: ----------- I'm using debian Version testing package octave the command: octave> [r, p, k, e] = residue ([2,1] , [1,3]) /usr/bin/octave: relocation error: /usr/lib/atlas/liblapack.so.2: undefined symbol: ATL_dGetNB Process Inferior Octave exited abnormally with code 127 or octave> roots([1,2,3]) /usr/bin/octave: relocation error: /usr/lib/atlas/liblapack.so.2: undefined symbol: ATL_dGetNB Process Inferior Octave exited abnormally with code 127 Repeat-By: --------- * Please replace this item with a description of the sequence of events that causes the problem to occur. Fix: --- * If possible, replace this item with a description of how to fix the problem (if you don't have a fix for the problem, don't include this section, but please do submit your report anyway). Configuration (please do not edit this section): ----------------------------------------------- uname output: Linux ema-pc25 2.4.23-rthal5 #2 SMP Mo Jan 26 16:50:48 CET 2004 i686 GNU/Linux configure opts: '--prefix=/usr' '--datadir=/usr/share' '--libdir=/usr/lib' '--libexecdir=/usr/lib' '--infodir=/usr/share/info' '--mandir=/usr/share/man' '--with-blas=/usr/lib/libblas2.so' '--with-lapack=/usr/lib/liblapack2.so' '--without-hdf5' '--with-fftw' '--with-g77=/usr/bin/g77' '--enable-shared' '--enable-rpath' '--disable-static' '--build' 'i386-linux' 'CC=/usr/bin/gcc' 'CXX=/usr/bin/g++' 'F77=/usr/bin/g77' 'build_alias=i386-linux' Fortran compiler: /usr/bin/g77 FFLAGS: -O2 F2C: F2CFLAGS: FLIBS: -L/usr/lib/gcc-lib/i486-linux/3.3.2 -L/usr/lib/gcc-lib/i486-linux/3.3.2/../../.. -lfrtbegin -lg2c -lm -lgcc_s CPPFLAGS: INCFLAGS: -I. -I. -I./liboctave -I./src -I./libcruft/misc -I./glob -I./glob C compiler: /usr/bin/gcc, version 3.3.2 (Debian) CFLAGS: -O2 CPICFLAG: -fPIC C++ compiler: /usr/bin/g++, version 3.3.2 CXXFLAGS: -O2 CXXPICFLAG: -fPIC LD_CXX: /usr/bin/g++ LDFLAGS: -s LIBFLAGS: -L. RLD_FLAG: -Wl,-rpath -Wl,/usr/lib/octave-2.1.50 BLAS_LIBS: /usr/lib/liblapack2.so /usr/lib/libblas2.so FFTW_LIBS: -lfftw LIBS: -lreadline -lncurses -ldl -lm LEXLIB: LIBPLPLOT: LIBDLFCN: LIBGLOB: ./glob/glob.o ./glob/fnmatch.o SED: /bin/sed DEFS: -DPACKAGE_NAME="" -DPACKAGE_TARNAME="" -DPACKAGE_VERSION="" -DPACKAGE_STRING="" -DPACKAGE_BUGREPORT="" -DOCTAVE_SOURCE=1 -DSTDC_HEADERS=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_MEMORY_H=1 -DHAVE_STRINGS_H=1 -DHAVE_INTTYPES_H=1 -DHAVE_STDINT_H=1 -DHAVE_UNISTD_H=1 -DSEPCHAR=1 -DSEPCHAR_STR=":" -D__NO_MATH_INLINES=1 -DCXX_NEW_FRIEND_TEMPLATE_DECL=1 -DCXX_ISO_COMPLIANT_LIBRARY=1 -DCXX_ABI=gnu_v3 -DHAVE_LIBM=1 -DHAVE_FFTW_H=1 -DHAVE_FFTW=1 -DF77_FUNC(name,NAME)=name ## _ -DF77_FUNC_(name,NAME)=name ## __ -DHAVE_BLAS=1 -DHAVE_GETHOSTNAME=1 -DHAVE_GETPWNAM=1 -DHAVE_DEV_T=1 -DHAVE_INO_T=1 -DHAVE_NLINK_T=1 -DHAVE_NLINK_T=1 -DHAVE_LONG_LONG_INT=1 -DHAVE_UNSIGNED_LONG_LONG_INT=1 -DHAVE_SIGSET_T=1 -DHAVE_SIG_ATOMIC_T=1 -DSIZEOF_SHORT=2 -DSIZEOF_INT=4 -DSIZEOF_LONG=4 -DSIZEOF_LONG_LONG=8 -DHAVE_ALLOCA_H=1 -DHAVE_ALLOCA=1 -DNPOS=std::string::npos -DHAVE_PLACEMENT_DELETE=1 -DHAVE_DYNAMIC_AUTO_ARRAYS=1 -DSTDC_HEADERS=1 -DHAVE_DIRENT_H=1 -DTIME_WITH_SYS_TIME=1 -DHAVE_SYS_WAIT_H=1 -DHAVE_ASSERT_H=1 -DHAVE_CURSES_H=1 -DHAVE_DLFCN_H=1 -DHAVE_FCNTL_H=1 -DHAVE_FLOAT_H=1 -DHAVE_GRP_H=1 -DHAVE_LIMITS_H=1 -DHAVE_MEMORY_H=1 -DHAVE_NCURSES_H=1 -DHAVE_POLL_H=1 -DHAVE_PWD_H=1 -DHAVE_STDLIB_H=1 -DHAVE_STRING_H=1 -DHAVE_SYS_IOCTL_H=1 -DHAVE_SYS_PARAM_H=1 -DHAVE_SYS_POLL_H=1 -DHAVE_SYS_RESOURCE_H=1 -DHAVE_SYS_SELECT_H=1 -DHAVE_SYS_STAT_H=1 -DHAVE_SYS_TIME_H=1 -DHAVE_SYS_TIMES_H=1 -DHAVE_SYS_TYPES_H=1 -DHAVE_SYS_UTSNAME_H=1 -DHAVE_TERMCAP_H=1 -DHAVE_UNISTD_H=1 -DHAVE_SSTREAM=1 -DHAVE_TERMIO_H=1 -DHAVE_SGTTY_H=1 -DHAVE_GLOB_H=1 -DHAVE_FNMATCH_H=1 -DHAVE_ATEXIT=1 -DHAVE_BASENAME=1 -DHAVE_BCOPY=1 -DHAVE_BZERO=1 -DHAVE_DUP2=1 -DHAVE_ENDGRENT=1 -DHAVE_ENDPWENT=1 -DHAVE_EXECVP=1 -DHAVE_FCNTL=1 -DHAVE_FORK=1 -DHAVE_GETCWD=1 -DHAVE_GETEGID=1 -DHAVE_GETEUID=1 -DHAVE_GETGID=1 -DHAVE_GETGRENT=1 -DHAVE_GETGRGID=1 -DHAVE_GETGRNAM=1 -DHAVE_GETPGRP=1 -DHAVE_GETPID=1 -DHAVE_GETPPID=1 -DHAVE_GETPWENT=1 -DHAVE_GETPWUID=1 -DHAVE_GETTIMEOFDAY=1 -DHAVE_GETUID=1 -DHAVE_GETWD=1 -DHAVE_KILL=1 -DHAVE_LINK=1 -DHAVE_LOCALTIME_R=1 -DHAVE_LSTAT=1 -DHAVE_MEMMOVE=1 -DHAVE_MKDIR=1 -DHAVE_MKFIFO=1 -DHAVE_MKSTEMP=1 -DHAVE_ON_EXIT=1 -DHAVE_PIPE=1 -DHAVE_POLL=1 -DHAVE_PUTENV=1 -DHAVE_RAISE=1 -DHAVE_READLINK=1 -DHAVE_RENAME=1 -DHAVE_RINDEX=1 -DHAVE_RMDIR=1 -DHAVE_SELECT=1 -DHAVE_SETGRENT=1 -DHAVE_SETPWENT=1 -DHAVE_SETVBUF=1 -DHAVE_SIGACTION=1 -DHAVE_SIGLONGJMP=1 -DHAVE_SIGPENDING=1 -DHAVE_SIGPROCMASK=1 -DHAVE_SIGSUSPEND=1 -DHAVE_STAT=1 -DHAVE_STRCASECMP=1 -DHAVE_STRDUP=1 -DHAVE_STRERROR=1 -DHAVE_STRFTIME=1 -DHAVE_STRNCASECMP=1 -DHAVE_STRPTIME=1 -DHAVE_SYMLINK=1 -DHAVE_TEMPNAM=1 -DHAVE_UMASK=1 -DHAVE_UNLINK=1 -DHAVE_USLEEP=1 -DHAVE_VFPRINTF=1 -DHAVE_VSPRINTF=1 -DHAVE_VSNPRINTF=1 -DHAVE_WAITPID=1 -DHAVE_LIBDL=1 -DHAVE_DLOPEN=1 -DHAVE_DLSYM=1 -DHAVE_DLERROR=1 -DHAVE_DLCLOSE=1 -DHAVE_DLOPEN_API=1 -DENABLE_DYNAMIC_LINKING=1 -DHAVE_TIMEVAL=1 -DHAVE_FINITE=1 -DHAVE_ISNAN=1 -DHAVE_ISINF=1 -DHAVE_COPYSIGN=1 -DHAVE_ACOSH=1 -DHAVE_ASINH=1 -DHAVE_ATANH=1 -DHAVE_ERF=1 -DHAVE_ERFC=1 -DHAVE_STRUCT_STAT_ST_BLKSIZE=1 -DHAVE_STRUCT_STAT_ST_BLOCKS=1 -DHAVE_STRUCT_STAT_ST_RDEV=1 -DHAVE_STRUCT_TM_TM_ZONE=1 -DHAVE_TM_ZONE=1 -DUSE_READLINE=1 -DEXCEPTION_IN_MATH=1 -DRETSIGTYPE=void -DSYS_SIGLIST_DECLARED=1 -DHAVE_SYS_SIGLIST=1 -DHAVE_POSIX_SIGNALS=1 -DHAVE_GETRUSAGE=1 -DHAVE_TIMES=1 -DYYTEXT_POINTER=1 -DGNUPLOT_BINARY="gnuplot" -DGNUPLOT_HAS_FRAMES=1 User-preferences (please do not edit this section): -------------------------------------------------- EDITOR = "emacs" EXEC_PATH = ":/bin:/usr/bin:/usr/X11R6/bin:/usr/local/bin" IMAGEPATH = ".:/usr/share/octave/2.1.50/imagelib//" INFO_FILE = "/usr/share/info/octave.info" INFO_PROGRAM = "info" LOADPATH = "./M-Functions:./OCT-Functions:" PAGER = "less -e -P'-- less ?pB(%pB\\%):--. (f)orward, (b)ack, (q)uit$'" PS1 = "\\s> " PS2 = "> " PS4 = "+ " automatic_replot = 0 beep_on_error = 0 completion_append_char = " " default_eval_print_flag = 1 # default_global_variable_value = <no value or error in displaying it> default_return_value = [] default_save_format = "ascii" define_all_return_values = 0 do_fortran_indexing = 0 echo_executing_commands = 0 empty_list_elements_ok = 1 fixed_point_format = 0 gnuplot_binary = "gnuplot" gnuplot_command_end = "\n" gnuplot_command_plot = "pl" gnuplot_command_replot = "rep" gnuplot_command_splot = "sp" gnuplot_command_title = "t" gnuplot_command_using = "u" gnuplot_command_with = "w" gnuplot_has_frames = 1 history_file = "/home/rohrm/.octave_hist" history_size = 1024 ignore_function_time_stamp = "system" implicit_num_to_str_ok = 0 implicit_str_to_num_ok = 0 initialize_global_variables = 0 max_recursion_depth = 256 ok_to_lose_imaginary_part = "warn" output_max_field_width = 10 output_precision = 5 page_output_immediately = 0 page_screen_output = 0 prefer_column_vectors = 1 print_answer_id_name = 1 print_empty_dimensions = 1 print_rhs_assign_val = 0 propagate_empty_matrices = 1 resize_on_range_error = 1 return_last_computed_value = 0 save_precision = 15 saving_history = 1 silent_functions = 0 split_long_rows = 1 string_fill_char = " " struct_levels_to_print = 2 suppress_verbose_help_message = 0 treat_neg_dim_as_zero = 0 warn_assign_as_truth_value = 1 warn_divide_by_zero = 1 warn_function_name_clash = 1 warn_future_time_stamp = 1 warn_missing_semicolon = 0 warn_variable_switch_label = 0 whitespace_in_literal_matrix = ------------------------------------------------------------- Octave is freely available under the terms of the GNU GPL. Octave's home on the web: http://www.octave.org How to fund new projects: http://www.octave.org/funding.html Subscription information: http://www.octave.org/archive.html -------------------------------------------------------------