Hey, i've been meaning to ask you about plans to make [fexpr~] available for Max. I've been recently teaching peopl about max as well, and I use [fexpr~] a lot. I always assumed max had the same objects, but was surprised to learn it doesn't have an [expr~] object, just an [expr] which seems to ba based on this work. Not that I actually care much about Max, cause I actually like to promote Pd to Max users, but I'd just like to know about the plans really, if they actually exist or are just unlikely.
thanks 2015-06-08 3:45 GMT-03:00 Alexandre Torres Porres <[email protected]>: > Hello, great to hear from you. Yes, I got that fix, but I never compiled > it and was just hoping someday it'd show up as an update, and I'm just > worried it never came to be. Sorry to put you on the spot. I'm still > learning about the bug reports work and get dealt with in Pd, people in the > list were explaining to me today in fact. But since everyone is gathered > here, instead of me making a bug report, I'll just post everything I found > wrong or funny. I spent a great deal of time testing, here we go: > > - the help file of [expr] gives the wrong link to expr documentation, it > points to http://www.crca.ucsd.edu/~yadegari/expr.html where it should > point to the new link http://yadegari.org/expr/expr.html > > - The random function is not listed in the documentation link above. But > it's great and I always use it. It has a bug in Pd extended 0.42 where > [expr random(1000, 100001)] will eventually give negative numbers. But, > somehow, this seems to be fixed in vanilla 0.46-6. > > - the "if" function is mentioned twice in the documentation > > - The function "Sum" is not working yet. > > - In the code we see other functions for tables that are not mentioned on > the > documentation link They are: "avg", "Avg" and "Store" - but none of which > seem to be working as well! > > - there's this "copysig" issue (which is written wrong int the > documentation as "copysign") and it seems to not be working. > > - expr will consider integers as integers, so [expr 5 / 4] results in "1". > You can do something like [expr 5./ 4] for it to work, or use the float > function like this: [expr float(5) / 4]. Now, this may not be a bug or > wrong, but if you use [expr float(1.4)] it'll return you "1" instead of > "1.4", and I guess it should be "1.4" anyway... > > - [expr imodf($f1)] and [expr ldexp($f1)] are not loading > > - [expr drem($f1)] loads with one argument, but the documentation says it > takes two arguments. Even though it loads, it doesn't seem to be working, > it sends lots of errors, such as "error: expr: FUNC_EVAL(1291): bad right > type 0 /// expr: bang: unrecognized result 0 /// error: expr: > FUNC_EVAL(1291): bad right type 3 > > - One's comlpement will load like this [expr $f1 ~ $f2]. Not sure what > it's supposed to be, but it seems the second argument doesn't affect it at > all. > > - "floor" and "ceil" will load with two arguments, documentation says it > was only one! Not sure what they're supposed to be, but it doesn't seem > right cause it always returns the 1st argument in both of them. > > - "fmod", wrong number of arguments in the documentation, it takes two! > > - In the documentation, you have " > atan() > 1 > inverse hyperbolic tangent" > but I belive it should be "atan*h*" > > - Code says > > * The following are done but not popular enough in math libss > * to be included yet > * hypoth - Euclidean distance function > * trunc > * round > * nearbyint - > > > So, maybe they are popular enough nowadays? Maybe they're ready to be > included? > > Well, that's what I found so far. I'm no mathematician, so I can't find > anything else I guess. I could test other functions but I wouldn't know if > they are correct. > > Anyway, sorry I can't help more getting into the code issues. I'm at a > point now that I wish I know more about programming so I can help Pd > development. > > Thanks > > > > 2015-06-08 3:08 GMT-03:00 Shahrokh Yadegari <[email protected]>: > >> Hi Alexandre, >> >> This seems to be a bug. I am not sure why I missed the 'n' on the name >> either. As it seems that this function has never worked, we should fix the >> name as well. The solution is simple as follows: >> >> extra/expr~/vexp_fun.c >> >> 188c188 >> >> < {"copysign", ex_copysign, 2}, >> >> --- >> >> > {"copysig", ex_copysign, 1}, >> >> >> I checked the mailing list (I am sorry that I am not a regular reader) >> and I see some concerns about the maintenance of the code. I am happy to >> fix the problems and I thought I sent you a fix for the last problem you >> had found in 2009. Can somebody point me to a document or a webpage that >> explains what the best way is to introduce new changes to the pd source >> base. Miller, should I pass the fixes to you, or is there another >> repository? >> >> In the meanwhile, if there are other bugs in expr that anybody else >> knows, please send them to me and I will fix them as soon as I can. >> >> best, >> Shahrokh >> >> On Sun, Jun 7, 2015 at 12:57 PM, Alexandre Torres Porres < >> [email protected]> wrote: >> >>> hi there, I was checking the source of expr (find it attached) and saw >>> this "copysign" function that I needed for a formula, but I can't get it to >>> work/load. >>> >>> I'm trying something like [expr copysign($f1)] and it's not happening. >>> The expr manual page in http://yadegari.org/expr/expr.html tells about >>> this function as well, here it is: >>> >>> copysign() >>> 1 >>> copy sign of a number(added in version 0.4) >>> >>> So it seems I'm supposedly doing the right thing... is it a bug? I'm on >>> extended 0.42 and it says that it's expr version 0.4 when it loads. >>> >>> cheers >>> >> >> >> >> -- >> Shahrokh Yadegari >> Professor of Composition and Sound Design, >> Theatre and Dance Department >> University of California, San Diego >> Director, Initiative for Digital Exploration of Arts and Science, (IDEAS) >> California Institute for Telecommunications and Information Technologies >> (Calit2) >> Email: [email protected] >> Web: http://yadegari.org >> Tel: (858) 822-4113 >> Fax: (858) 534-1080 >> >> >
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