+1 for using 'math' instead of 'custom' On Mon, Oct 20, 2014 at 9:47 AM, Lahiru Cooray <[email protected]> wrote:
> Hi Maninda, > > We used standard math operations available in java.lang.Math package and > we have implemented the operations which are not available in the > mentioned package (eg: pmod, positive,negative,unhex etc). > Thanks for the feedback. > > > On Mon, Oct 20, 2014 at 12:19 AM, Maninda Edirisooriya <[email protected]> > wrote: > >> Hi Lahiru, >> >> Are following functions implement any standard math API? >> If not better if make them compatible with any well known API like >> Mathlab, R or Octave which would ease the users who are already familiar >> with these software. >> Thanks. >> >> >> *Maninda Edirisooriya* >> Senior Software Engineer >> >> *WSO2, Inc.*lean.enterprise.middleware. >> >> *Blog* : http://maninda.blogspot.com/ >> *E-mail* : [email protected] >> *Skype* : @manindae >> *Twitter* : @maninda >> >> On Sun, Oct 19, 2014 at 10:04 PM, Aiyadurai Rajeevan <[email protected]> >> wrote: >> >>> +1 >>> >>> Hi Sanjiva/Lahiru, >>> >>> math: would be most meaningful in this context, Hence i'll also align my >>> code with this namespace. >>> >>> Thanks & Regards, >>> S.A.Rajeevan >>> Software Engineer WSO2 Inc >>> E-Mail: [email protected] | Mobile : +94776411636 >>> >>> On Sat, Oct 18, 2014 at 4:18 PM, Lahiru Cooray <[email protected]> wrote: >>> >>>> Hi Sanjiva, >>>> We used the alias 'custom' because we implemented these as custom >>>> extensions to Siddhi. Anyway 'math' would be the more meaningful alias. >>>> +1 for 'math:' >>>> >>>> >>>> On Sat, Oct 18, 2014 at 11:09 AM, Sanjiva Weerawarana <[email protected] >>>> > wrote: >>>> >>>>> Great - but why "custom:". Can we not use "math:"?? >>>>> >>>>> On Wed, Oct 15, 2014 at 5:34 PM, Lahiru Cooray <[email protected]> >>>>> wrote: >>>>> >>>>>> Hi, >>>>>> >>>>>> We have implemented below Math operations (all the Math operations >>>>>> available >>>>>> in Hive) as extensions to Siddhi engine. >>>>>> >>>>>> round(DOUBLE a)round(DOUBLE a, INT d)floor(DOUBLE a)ceil(DOUBLE a), >>>>>> ceiling(DOUBLE a)rand(), rand(INT seed)exp(DOUBLE a), exp(DECIMAL >>>>>> a)ln(DOUBLE >>>>>> a), ln(DECIMAL a)log10(DOUBLE a), log10(DECIMAL a)log2(DOUBLE a), >>>>>> log2(DECIMAL a)log(DOUBLE base, DOUBLE a) >>>>>> log(DECIMAL base, DECIMAL a)pow(DOUBLE a, DOUBLE p), power(DOUBLE a, >>>>>> DOUBLE p)sqrt(DOUBLE a), sqrt(DECIMAL a)bin(BIGINT a)hex(BIGINT a) >>>>>> hex(STRING a) hex(BINARY a)unhex(STRING a)conv(BIGINT num, INT >>>>>> from_base, INT to_base), conv(STRING num, INT from_base, INT >>>>>> to_base)abs(DOUBLE >>>>>> a)pmod(INT a, INT b), pmod(DOUBLE a, DOUBLE b)sin(DOUBLE a), >>>>>> sin(DECIMAL a)asin(DOUBLE a), asin(DECIMAL a)cos(DOUBLE a), >>>>>> cos(DECIMAL a)acos(DOUBLE a), acos(DECIMAL a)tan(DOUBLE a), >>>>>> tan(DECIMAL a)atan(DOUBLE a), atan(DECIMAL a)degrees(DOUBLE a), >>>>>> degrees(DECIMAL a)radians(DOUBLE a), radians(DOUBLE a)positive(INT >>>>>> a), positive(DOUBLE a)negative(INT a), negative(DOUBLE a)sign(DOUBLE >>>>>> a), sign(DECIMAL a)e()pi() >>>>>> >>>>>> >>>>>> Eg:You can use the operations as below: >>>>>> >>>>>> *from InStreamSample1* >>>>>> *select custom:pi()* >>>>>> *insert into OutStreamSample1;* >>>>>> >>>>>> *from InStreamSample1* >>>>>> *select custom:tan(parameter1)* >>>>>> *insert into OutStreamSample1;* >>>>>> >>>>>> *from InStreamSample1* >>>>>> *select custom:pmod(parameter1,parameter2)* >>>>>> *insert into OutStreamSample1;* >>>>>> >>>>>> >>>>>> We used built-in math operations available in java.lang.Math package >>>>>> and we have implemented the operations which are not available in >>>>>> the mentioned package (eg: pmod, positive,negative,unhex etc). >>>>>> Separate classes were created for each math operation/extension and >>>>>> custom function names are as same as the operation names in >>>>>> java.lang.Math. >>>>>> >>>>>> Appreciate if someone could point out if there are any other >>>>>> missing/needed operations or any improvements regarding this.. >>>>>> >>>>>> >>>>>> Thanks, >>>>>> -- >>>>>> *Lahiru Cooray* >>>>>> Software Engineer >>>>>> WSO2, Inc.;http://wso2.com/ >>>>>> lean.enterprise.middleware >>>>>> >>>>>> Mobile: +94 715 654154 >>>>>> >>>>>> _______________________________________________ >>>>>> Architecture mailing list >>>>>> [email protected] >>>>>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>>>>> >>>>>> >>>>> >>>>> >>>>> -- >>>>> Sanjiva Weerawarana, Ph.D. >>>>> Founder, Chairman & CEO; WSO2, Inc.; http://wso2.com/ >>>>> email: [email protected]; office: (+1 650 745 4499 | +94 11 214 5345) >>>>> x5700; cell: +94 77 787 6880 | +1 408 466 5099; voip: +1 650 265 8311 >>>>> blog: http://sanjiva.weerawarana.org/; twitter: @sanjiva >>>>> Lean . Enterprise . Middleware >>>>> >>>>> _______________________________________________ >>>>> Architecture mailing list >>>>> [email protected] >>>>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>>>> >>>>> >>>> >>>> >>>> -- >>>> *Lahiru Cooray* >>>> Software Engineer >>>> WSO2, Inc.;http://wso2.com/ >>>> lean.enterprise.middleware >>>> >>>> Mobile: +94 715 654154 >>>> >>> >>> >>> _______________________________________________ >>> Architecture mailing list >>> [email protected] >>> https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture >>> >>> >> > > > -- > *Lahiru Cooray* > Software Engineer > WSO2, Inc.;http://wso2.com/ > lean.enterprise.middleware > > Mobile: +94 715 654154 > > _______________________________________________ > Architecture mailing list > [email protected] > https://mail.wso2.org/cgi-bin/mailman/listinfo/architecture > > -- Best Regards, V.Rajeevan Software Engineer, WSO2 Inc. :http://wso2.com Mobile : +94 773090875 Email : [email protected]
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