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- Subject: Re: [ANN] Lua 5.3.0 (work3) now available
- From: Xavier Wang <weasley.wx@...>
- Date: Mon, 23 Jun 2014 04:49:29 +0800
Why there isn't math.sum in math or lmathx?
2014-06-20 21:39 GMT+08:00 Luiz Henrique de Figueiredo <email@example.com>:
>> I'm sorry to see some of the math functions go.
> A preview of my mathx library for 5.3 is availabe at
> It also contains a Lua script for generating most of the binding
> which may be useful for customization.
> Here are the function mathx contains:
> abs cosh fmod lgamma round
> acos deg frexp log scalbn
> acosh erf gamma log10 sin
> asin erfc hypot log1p sinh
> asinh exp isfinite log2 sqrt
> atan exp2 isinf logb tan
> atan2 expm1 isnan modf tanh
> atanh fdim isnormal nearbyint trunc
> cbrt floor j0 nextafter y0
> ceil fma j1 pow y1
> copysign fmax jn rad yn
> cos fmin ldexp remainder
> It includes the Bessel functions j0, j1, jn, y0, y1, yn, which I think are
> Posix extensions. The script for generating the binding can be easiy
> changed to skip these.
> These are present in C99 but have been omitted because I think
> they don't make much sense in Lua. Otherwise, please let me know.
> remquo, nan(), ilogb, rint, lrint, lround, scalbln, signbit, fpclassify
> These will probably be added in the final release:
> fegetround, fesetround
> Some function have been renamed to better names:
> fabs -> abs
> tgamma -> gamma
> Perhaps these changes should be done as well:
> atan2 -> atan (as in Lua 5.3)
> fmin -> min
> fmax -> max
> log -> accept an optional base
> Finally, like previous versions of mathx, this one adds functions the
> existing math library, overwriting the functions already there. This
> is a problem for abs (which works with integers as well) and log (which
> accepts an optional base; this one is easy to fix).
> All feedback welcome. Thanks.