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NEWS: various copy and punctuation improvements.
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@StefanKarpinski
StefanKarpinski committed Nov 6, 2013
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Expand Up @@ -50,14 +50,22 @@ New language features

* A semicolon is now allowed after an `import` or `using` statement ([#4130]).

* In an interactive session (REPL), you can use `;cmd` to run `cmd` via an interactive
shell. For example:

julia> ;ls
CONTRIBUTING.md Makefile VERSION deps/ julia@ ui/
DISTRIBUTING.md NEWS.md Windows.inc doc/ src/ usr/
LICENSE.md README.md base/ etc/ test/
Make.inc README.windows.md contrib/ examples/ tmp/

New library functions
---------------------

* Sampling profiler ([#2597]).

* Functions for examining stages of the compiler's output:
`code_lowered`, `code_typed`, `code_llvm`, and `code_native`
`code_lowered`, `code_typed`, `code_llvm`, and `code_native`.

* Multimedia I/O API (display, writemime, etcetera) ([#3932]).

Expand All @@ -69,26 +77,25 @@ New library functions

* `methodswith` shows all methods with an argument of specific type.

* `mapslices` provides a general way to perform operations on slices of arrays
([#2204])
* `mapslices` provides a general way to perform operations on slices of arrays ([#2204]).

* `Collections.PriorityQueue` type and `Collections.heap` functions ([#2920]).

* `quadgk` 1d-integration routine ([#3140]).

* `erfinv` and `erfcinv` functions ([#2987]).

* `varm`, `stdm` ([#2265])
* `varm`, `stdm` ([#2265]).

* `logdet` ([#3070])
* `logdet` ([#3070]).

* names for C-compatible types: `Cchar`, `Clong`, etc. ([#2370]).
* Names for C-compatible types: `Cchar`, `Clong`, etc. ([#2370]).

* `cglobal` to access global variables ([#1815])
* `cglobal` to access global variables ([#1815]).

* `unsafe_pointer_to_objref` ([#2468]) and `pointer_from_objref` ([#2515])
* `unsafe_pointer_to_objref` ([#2468]) and `pointer_from_objref` ([#2515]).

* `readandwrite` for external processes
* `readandwrite` for external processes.

* I/O functions `readbytes` and `readbytes!` ([#3878]).

Expand All @@ -103,96 +110,95 @@ New library functions

* `interrupt` for interrupting worker processes ([#3819]).

* `timedwait` does a polled wait for an event till a specified timeout.
* `timedwait` does a polled wait for an event till a specified timeout.

* `Condition` type with `wait` and `notify` functions for synchronizing `Task`s
* `Condition` type with `wait` and `notify` functions for `Task` synchronization.

* `versioninfo` provides detailed version information
* `versioninfo` provides detailed version information, especially useful when
reporting and diagnosing bugs.

* `detach` for running child processes in a separate process group
* `detach` for running child processes in a separate process group.

* `setenv` for passing environment variables to child processes
* `setenv` for passing environment variables to child processes.

* `ifelse` eagerly-evaluated conditional function, especially useful for
vectorized conditionals
vectorized conditionals.

Library improvements
--------------------

* `isequal` now returns `false` for numbers of different types.
This makes it easier to define hash functions for new numeric types.
This makes it much easier to define hashing for new numeric types.
Uses of `Dict` with numeric keys might need to change
to account for this increased strictness.

* Rewritten `Pkg` system for much greater robustness in case of failures,
versioned dependencies, and many other enhancements
(see the new [packages chapter] in the manual).
* A redesigned and rewritten `Pkg` system is much more robust in case of problems.
The the basic interface to adding and removing package requirements remains the
same, but great deal of additional functionality for developing packages in-place
was added. See the new [packages chapter] in the manual for further details.

* Sort API updates ([#3665]).
* Sorting API updates ([#3665]) – see [sorting functions].

* `delete!(d::Dict, key)` has now been split
into separate `pop!` and `delete!` variants:
the former returns the deleted value and behaves like the old `delete!`,
and the latter returns `d`
and does not throw an exception if `key` was not found ([#3439]).
* The `delete!(d::Dict, key)` function has been split into separate `pop!`
and `delete!` functions ([#3439]).
`pop!(d,key)` removes `key` from `d` and returns the value that was associated with it;
it throws an exception if `d` does not contain `key`.
`delete!(d,key)` removes `key` from `d` and succeeds regardless of whether `d`
contained `key` or not, returning `d` itself in either case.

* Linear-algebra factorization routines (`lu`, `chol`, etc.)
now return `Factorization` objects (and `lud`, `chold`, etc. are deprecated)
([#2212]).
* Linear-algebra factorization routines (`lu`, `chol`, etc.) now return
`Factorization` objects (and `lud`, `chold`, etc. are deprecated; [#2212]).

* A number of improvements to sparse matrix capabilities
and sparse linear algebra.
* A number of improvements to sparse matrix capabilities and sparse linear algebra.

* More linear algebra fixes and eigensolver hooks
for `SymTridiagonal`, `Tridiagonal` and `Bidiagonal` matrix types
([#2606], [#2608], [#2609], [#2611], [#2678], [#2713], [#2720], [#2725])
([#2606], [#2608], [#2609], [#2611], [#2678], [#2713], [#2720], [#2725]).

* Change `integer_valued`, `real_valued`, and so on
to `isinteger`, `isreal`, and so on,
and semantics of the later are now value-based rather than type-based,
unlike Matlab/Octave ([#3071]).
`isbool` and `iscomplex` are eliminated
in favor of general `iseltype` function.
* Change `integer_valued`, `real_valued`, and so on to `isinteger`, `isreal`,
and so on, and semantics of the later are now value-based rather than type-based,
unlike Matlab/Octave ([#3071]). `isbool` and `iscomplex` are eliminated in favor
of a general `iseltype` function.

* Transitive comparison of floats with rationals ([#3102]).

* Fast prime generation with `primes` and primality testing with `isprime`.
* Fast prime generation with `primes` and fast primality testing with `isprime`.

* `sum` and `cumsum` now use pairwise summation for better accuracy ([#4039]).
* `sum` and `cumsum` now use [pairwise summation] for better accuracy ([#4039]).

* Dot operators (`.+`, `.*` etc.)
now broadcast singleton dimensions of array arguments.
* Dot operators (`.+`, `.*` etc.) now broadcast singleton dimensions of array arguments.
This behavior can be applied to any function using `broadcast(f, ...)`.

* `combinations`, `permutations`, and `partitions`
now return iterators instead of a task,
* `combinations`, `permutations`, and `partitions` now return iterators instead of a task,
and `integer_partitions` has been renamed to `partitions` ([#3989], [#4055]).

* `isreadable`/`iswritable` functions added for more IO types ([#3872]).
* `isreadable`/`iswritable` methods added for more IO types ([#3872]).

* Much faster and improved `readdlm` and `writedlm` ([#3350], [#3468], [#3483]).

* Faster `matchall` ([#3719]), and a number of string and regex improvements.
* Faster `matchall` ([#3719]), and various string and regex improvements.

* Documentation of advanced linear algebra features ([#2807]).

* Support optional RTLD flags in `dlopen` ([#2380]).

* `pmap` now works with any iterable collection.

* Options in `pmap` for retrying or ignoring failed tasks.
Also `pmap` now works with any iterable.

* New `sinpi(x)` and `cospi(x)` functions
to compute sine and cosine of `pi*x` more accurately ([#4112]).
* New `sinpi(x)` and `cospi(x)` functions to compute sine and cosine of `pi*x`
more accurately ([#4112]).

* New implementations of elementary complex functions
`sqrt`, `log`, `asin`, `acos`, `atan`, `tanh`, `asinh`, `acosh`, `atanh`
which have correct branch cuts ([#2891]).
with correct branch cuts ([#2891]).

* Improved behavior of `SubArray` ([#4412], [#4284], [#4044], [#3697], [#3790], [#3148], [#2844], [#2644] and various other fixes).
* Improved behavior of `SubArray` ([#4412], [#4284], [#4044], [#3697], [#3790],
[#3148], [#2844], [#2644] and various other fixes).

* New convenience functions in graphics API.

* Improved backtraces on Windows and OSX.
* Improved backtraces on Windows and OS X.

Deprecated or removed
---------------------
Expand All @@ -213,7 +219,7 @@ Deprecated or removed

* `logb` and `ilogb` renamed to `exponent` ([#2516]).

* `quote_string` renamed to `repr`.
* `quote_string` became a method of `repr`.

* `safe_char`, `check_ascii`, and `check_utf8` replaced by
`is_valid_char`, `is_valid_ascii`, and `is_valid_utf8`, respectively.
Expand All @@ -240,10 +246,9 @@ Deprecated or removed

* `diagmm` and `diagmm!` replaced by `scale` and `scale!` ([#2916]).

* `unsafe_ref` and `unsafe_assign`
replaced by `unsafe_load` and `unsafe_store!`.
* `unsafe_ref` and `unsafe_assign` replaced by `unsafe_load` and `unsafe_store!`.

* `add_each!` and `del_each!` replaced by `union!` and `setdiff!`
* `add_each!` and `del_each!` replaced by `union!` and `setdiff!`.

* `isdenormal` renamed to `issubnormal` ([#3105]).

Expand All @@ -258,12 +263,12 @@ Deprecated or removed

* `add` and `add!` for `Set` replaced by `push!`.

* Deprecated `ls` function in favor of `readdir` or `; ls` in the REPL.
* `ls` function deprecated in favor of `readdir` or `;ls` in the REPL.

* `start_timer` now expects arguments in units of seconds, not milliseconds.

* Shell redirection operators `|`, `>`, and `<`
were eliminated in favor of a new operator `|>` ([#3523]).
* Shell redirection operators `|`, `>`, and `<` eliminated in favor of a new
operator `|>` ([#3523]).

* `amap` is deprecated in favor of new `mapslices` functionality.

Expand Down Expand Up @@ -359,3 +364,5 @@ Too numerous to mention.
[#4412]: https://github.com/JuliaLang/julia/issues/4412

[packages chapter]: http://docs.julialang.org/en/latest/manual/packages/
[sorting functions]: http://docs.julialang.org/en/latest/stdlib/sort/
[pairwise summation]: https://en.wikipedia.org/wiki/Pairwise_summation

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