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Agena full changelog

Agena full changelog

Agena 2.23.0 released Nov 2, 2020 (New Release)
Agena 2.21.9 released Aug 26, 2020 (New Release)
Added a binding to the GNU Multiple Precision Floating-Point Reliable Library (MPFR). The binding unfortunately is not available on Mac OS X as it cannot be compiled there.
Tuned `linalg.backsub`, `linalg.forsub` and `linalg.rref` by four percent.
`calc.gtrap`, `calc.fminbr`, `calc.fmings`, `linalg.rref`, `linalg.backsub` and `linalg.forsub` have been tuned a little bit. If you want to change the precision of these functions, then you now have to call `envion.kernel` with the 'eps' key.
The C API function `lua_setmetatabletoobject` has been extended to delete metatables and optionally user-defined types.
Agena 2.20.1 released May 10, 2020 (New Release)
The `::` and `:-` type check operators have been extended: If a user-defined type has been declared for an object, and if a basic type is passed to the operators as the right operand, they will now perform a check for the given basic type. Formerly, the operators in this situation always returned `false`. With registers, the `:-` operator now checks for user-defined types, as well.
If an empty set has been passed to `::` or `:-` as the right operand, they now return an error.
Agena 2.20.0 released May 4, 2020 (New Release)
You can now declare constants. If you try to assign a new value to the constant later on in a session, the interpreter issues an error
You can switch off this new feature completely with the following statement: environ.kernel(constants = false)
Enumerations now automatically declare constants
Added parser warnings for duplicate local variable declaration. The feature has originally been written by Domingo Alvarez Duarte for Lua 5.1. As with the new constants feature, only the parser has been modified so that you will not notice any performance decrease.
Agena 2.19.1 released Apr 21, 2020 (New Release)
Re-introduced Lua 5.1 function `ipairs` with extended functionality to iterate over structures, strings and userdata - such like bags, numarrays, ulists and llists, etc. - in a standardised fashion. Also re-introduced `pairs` to iterate dictionaries.
In Linux, `os.cpuinfo` now differentiates between frequency and BogoMips and no longer returns BogoMips with the `frequency` field.
Agena 2.19.0 released Apr 15, 2020 (New Release)
A new major release with an important bug fix:
The `while` statement now accepts a simple assignment as a condition. If an assignment is given in the `while` clause, its right-hand side is evaluated and stored to the left-hand side name. The result of the evaluation is then checked and either the loop body is executed or not.
This allows for shorter code: Instead of you can now simply write (no need to assign `flag` before):
The variable assigned in the while clause is _not_ local to the loop body but can be accessed later on on the level that includes the loop.
Agena 2.18.2 released Apr 14, 2020 (New Release)
In UNIX, `io.maxopenfiles` can now also change the maximum number of open files.
In Solaris, `os.cpuinfo` now returns information on the CPU installed, instead of just `fail`.
Agena 2.18.1 released Mar 30, 2020 (New Release)
math.normalise` now computes the normalised value according to Sun Microsystems's implementation which is more precise. By passing any optional argument, the high 4-byte word of the normalised value is returned, too.
The new function `math.mulsign` multiplies, not copies, its first argument with the sign of its second.
Agena 2.18.0 released Mar 30, 2020 (New Release)
General updates and changes:
You can now add, subtract, multiply and divide numbers with `true` or `false`, where `true` in this context represents number 1 and `false` or `fail` number 0. Thus, you do not have to call `abs` any longer if you want to avoid the `if` operator, e.g. abs(x > 0)*x and (x > 0)*x are now equivalent expressions.
Agena 2.17.8 released Mar 25, 2020 (New Release)
The `obj[a to b]` indexing method to retrieve table items, substrings, etc. can now also be applied on userdata.
Introduced the new `memfile` package which simply collects substrings, i.e. combines them together. It is 20 times faster than simply concatening them iteratively with the `&` operator.

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