dan hayes

i didn't mean subtle as to what it does but just to the initial appearance as to whether it was in [..] or within (..) . so i see from your example that bracket form can be a lot more efficient in time and memory so if possible use that. I will study as to why and when it cannot be used in place of the form (...) in paren's.

yea that seemed to work correct. Never knew about that subtly difference between using a function call with argument in just paren's, (arg) vs in brackets [arg]. So now when and why would one ever want to use the form in brackets, [arg] rather than (arg) ? Maybe just internal efficiency and time ? Which one , every thing else being equal , requires more stack space memory , total memory etc.?

ok thanks for the tip. I will try to see if can use ordinary function but i did not think every thing needed was all global but i will try as may be able to modify it if need so so everything it needs is all global which was my intent in the first place as f try to avoid recursive functions if possible though i have used them prior with success.

or it could be that maxima does not always do things in the exact order in sequence as written. I think i have noticed that in the past esp when there is a disp(...) in the code. OK i now see i mispelled the word memoizing and from what i read just now in the internet it may be that shortcuts may be taken with memoizing functions in the way they are stored and retrieved or cached so things don't happen in the way one may expect. Perhaps i should have tried using an array or matrix instead if pos...

using a function call in a call loop

to Barton Williams and/or whoever about installing new version of maxima. The most difficult thing in installing new version or any version is in the edit configure,wxMaxima configuration. For example there is the setting is 'Autowrap long lines:' but only choices of NO or text only but i want mainly to autowrap long lines of maxima output answers so how do i do that? I do remember many years prior,could have been more than 20, when had that choice and definitely want it again for maxima output....

to Barton Williams. ok i posted that last before i saw your latest post. Anyway with regard to that should i uninstall my present version of maxima first ? or just what is best way to do that and not waste a lot of diskspace.

But strangely enough the following give correct answer. `` [rombergmin:4,romberg(abs(sin(x)),x,-1,1),romberg(sqrt(sin(x)^2),x,-1,1) ,romberg(signum(sin(x))*sin(x),x,-1,1)]; while replacing sin(x) by x or x^3 all gave wrong answer of 0. But plain integrate(...) or absint(...) all gave wrong answer but [load(fourie),absint(signum(sin(x))*sin(x),x,-1,1) ,"ck"=ev(2*integrate(sin(x),x,0,1),numer) ] ; Did not give answer 0 but gave a positive wrong answer and can one explain this; [ev(absint(sqrt(sin(x)^2),x,-1,0),numer),ev(absint(sqrt(sin(x)^2),x,0,1)...