Mercurial > octave
view etc/NEWS.8.md @ 31519:e3a133bf920f stable
NEWS.8.md: Add short list of bugs fixed for Octave 8
NEWS.8.md: Add short list of bugs that were fixed on the default
branch for Octave 8, hence were not covered by the bugfix lists
for Octave 7.x.
author | Arun Giridhar <arungiridhar@gmail.com> |
---|---|
date | Wed, 23 Nov 2022 05:14:04 -0500 |
parents | b2882cf2a547 |
children | f491195f7687 cb5d5c9d9c14 |
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Summary of important user-visible changes for version 8 (yyyy-mm-dd): --------------------------------------------------------------------- ### General improvements - Octave's libraries are now built using symbol visibility by default. That means that fewer symbols are exported from these libraries. Configure with `--disable-lib-visibility-flags` to export all symbols (as in previous versions). - `filter` is now 5X faster, which also speeds up `deconv`, `fftfilt` and `arma_rnd` by the same amount. - `integral` can now output a second argument passing the error measurement used by the underlying integrator. - `perms` now accepts a second argument "unique" to return only unique permutations for inputs with repeated elements. It is faster and takes less memory to call `perms ('aaaabbbbcccc', "unique")` than to call `unique (perms ('aaaabbbbcccc'), "rows")`. - `quadgk` can now accept the `ArrayValued` input parameter to handle array-valued input functions. - `delaunayn` now has consistent trivial simplex checking and removal for all input dimensions, simplex checking 3D inputs is now vectorized, and >3D simplex checking performance has been improved. Simplexes points are now ordered so they will all have positive outward normal vectors. Input type checking has also been added for improved error handling. - `factor` now factorizes all 64-bit integers in roughly the same time. Previously, the product of two large primes took much longer to factorize than highly composite inputs. - `Refine` option is now implemented in functions `ode45`, `ode23`, and `ode23s`. - Octave is now compatible with PCRE2 (UTF-8). PCRE2 is preferred over PCRE if both are installed. Configure with `--without-pcre2` if you prefer Octave to use PCRE in this case. ### Graphical User Interface - The GUI has a dark style and several new icons in toolbars for better visibility and higher contrast. - The GUI also has a new terminal widget, and comes with more fonts for the documentation browser. ### Graphics backend - When printing, the option `-svgconvert` is now the default. If you want to use the more limited EPS-based tool chain (the former default)—e.g., if you encounter inaccurate image rendering—you can pass the `-nosvgconvert` option to the `print` function. - Additional properties have been added to the `figure` graphics object: * `"innerposition"` (equivalent to `"position"`) * `"windowstate"` (not yet implemented) - Legend now features a new property `"itemhitfcn"`, allowing the execution of a callback function when a legend item is clicked. ### Matlab compatibility - `inline` functions now support all Matlab methods. The performance of `inline` functions has also been improved. - `sub2ind` now supports index values outside of the size specified by the subscripts. - `cylinder` now accepts a scalar for the radius argument. - `clock` now has an optional second output `ISDST` which indicates if Daylight Savings Time is in effect for the system's time zone. - `print` now accepts option `-image` to specify the "opengl" renderer and `-vector` to specify the "painters" renderer. - `format` now accepts the option "default", which is equivalent to calling `format` without any options to reset the default state. - `quadgk` now stops iterating when `error <= tolerance` while the previous condition was `error < tolerance`. - `mean` now accepts vector dimensions and options to handle `NaN` values. The option `"a"` (arithmetic mean), `"g"` (geometric mean), and `"h"` (harmonic mean) are no longer accepted, only the arithmetic mean is computed. For the geometric and harmonic mean, please use respective functions `geomean` and `harmmean` from the Octave Statistics package. - `var` and `std` now optionally output a second argument containing the mean or weighted mean. - `integral` can now accept the 'ArrayValued' option in combination with 'RelTol' and 'WayPoints'. - File system operations that remove files (e.g., `unlink` or `rmdir`) now also remove files that have their read-only file attribute set on Windows. - The default state for certain graphics properties has been made consistent with Matlab. Object | Property | Default State ------------|------------------|------------ figure | "dockcontrols" | "on" - `ode45`, `ode23`, and `ode23s` have improved results for options `Events`, `OutputFcn`, and `Refine`, along with corrected orientation of struct outputs. - *Early notice of future breaking changes*: Due to many user requests that Octave should have a Matlab-compatible string class, there is work under way to implement a string class, which will differ from a vector of characters. Currently in Octave, both 'foo' and "foo" are largely interchangeable, barring certain escape sequence interpretations that are present for one but not another. In future, that is likely to change as a consequence of implementing Matlab-style strings. This is required for other Matlab-compatibility activities as well. *What this means for user code*: If you want to treat "foo" as a character vector as opposed to a string object, *and* if you intend to use a future version of Octave with string classes, then rewrite "foo" as 'foo'. If you need to retain the character vector behavior for "foo", you can continue to use Octave 8 with long-term support. ### Alphabetical list of new functions added in Octave 8 * `clearAllMemoizedCaches` * `matlab.lang.MemoizedFunction` * `memoize` * `normalize` * `pagectranspose` * `pagetranspose` * `uifigure` ### Deprecated functions, properties, and operators The following functions and properties have been deprecated in Octave 8 and will be removed from Octave 10 (or whatever version is the second major release after 8): - Functions Function | Replacement -----------------------|------------------ shift | circshift sparse_auto_mutate | none (see below) - The `sparse_auto_mutate` function no longer has any effect on Octave's behavior. Previously, after calling `sparse_auto_mutate (true)`, Octave would automatically convert sparse matrices to full when a sparse matrix required more memory than simply using full matrix storage. This setting was `false` by default for compatibility with Matlab. Now you must manually convert to full storage when desired. - Properties The following property names are discouraged, but there is no fixed date for their removal. Object | Property | Replacement -----------------|-------------|------------ uimenu | label | text uimenu | callback | menuselectedfcn The following functions were deprecated in Octave 6 and have been removed from Octave 8. - Functions Function | Replacement -------------|------------ runtests | oruntests - The environment variable used by `mkoctfile` for linker flags is now `LDFLAGS` rather than `LFLAGS`. `LFLAGS` was deprecated in Octave 6, and will be removed in a future version of Octave. Summary of bugs fixed for version 8.1.0 (YYYY-MM-DD): ---------------------------------------------------- - Improved input validation and/or output handling for `poly`, `pinv`, `patch`, `fill`, `fill3`, `qp`, `datevec`, `textscan`, `sub2ind`, `qr`, `airy`, `regexp`, `dec2bin`, `dec2hex`, and many others. - Improved performance for `complex`, `fftw`, `delaunayn`, `isfield`, `tsearch`, sparse matrix exponentiation, other sparse operations, and many others. - Overhauled `@audiorecorder` and `@audioplayer` classes. ### Old release news - [Octave 7.x](etc/NEWS.7) - [Octave 6.x](etc/NEWS.6) - [Octave 5.x](etc/NEWS.5) - [Octave 4.x](etc/NEWS.4) - [Octave 3.x](etc/NEWS.3) - [Octave 2.x](etc/NEWS.2) - [Octave 1.x](etc/NEWS.1)