icegood

3 years, 109 days


These are questions asked by icegood

Want create my own geometric distribution with rather only natural values i.e. without zero:

c:=Distribution(PDF=(t->PDF(Geometric(p),t-1)));
But such form is luck to calculate even Mean value:

simplify(Mean(c)) fails. How to apply to get even Mean(F(c)) for complicated enough F?

In which context runs subj? Why all time when i start debugging with 'stoperror' it stops at 'interface' call i.e. in debugger

interface('prettyprint')

doesn't return 3 as worksheet returns. It return interface('prettyprint') i.e. symbol.

How to patch locally

February 25 2012 by icegood 255 Maple

How to patch library maple functions locally if there any method?

Found that in

IntegralTransforms:-Tools:-SimplifyPower

in 195-196

instead of

j := evalf(j[-1][2]-1);
k := evalf(j[1][1]+1)

 

should be

j := evalf(t1[-1][2]-1);
k := evalf(t1[1][1]+1)

How to update maple?

User-defined status

February 24 2012 by icegood 255 Maple

In status box between "Evaluating..." and "Memory, Time, Mode" there is enough space. Would be nice to have there smth like "user-defined status" of ~100 symbols (or so). Instead of long printed log you could see status of current stage of long-term process.

how to override Array type? Want workaround next behaviour for float array:

a:=Array(1..10,datatype=float)

a[1]:=((2)^(4/9)+sqrt(2));
Error, unable to store 't^(4/9)+2^(1/2)' when datatype=sfloat

i.e. to call convertor before assignment. Can i principally to do so?

And yes, no hfloats. I need sfloat. Sow in help that some types could be created like objects (stack, queue etc).

evalf rules: power

February 15 2012 by icegood 255 Maple

logically evalf(x^(1/10)); should return x^(0.1000...0), not x^(1/10). Or it's just case of other rule?

Why in next code i must apply operator twice?

zzz.mw

 

 

-------

inert form eval procedure

Debugger window

February 10 2012 by icegood 255 Maple

How to change font there?

 

==========

Debugger window

restart;
a:='a';
                               a
assume(a>0);
H:=a;
                               a
subs(a=b, H);
       ...

 

How it works to be so fast?

impl_plot.mw

 

Is it somehow related to other wonderful tetralogy:

http://www.mapleprimes.com/posts/95845-Generating-Samples-From-Custom-Probability-Distributions-I?

Implicitplot

 

How to handle "division by zero" from EVERY environment in EVERY situation?

err_handle.mw

 

----------

error handler

Am i undestand right that all GUI-changed properties of plot are not accessable via command-line because with already pictured plot there are no binded variables and no method to bind? For example after manual streching and moving i need to work in interest area of graph i.e. includding new textplots there and so on. See only way to work with via DocumentTools component and it events to get e.g. xrange  and yrange. Is there better way?

Cannot find own answer in

http://www.mapleprimes.com/posts/100884-Precision-And-Plot-Drivers

via searching in my answers. Is it because original message is too old and thats why should be so?

After loong time calculations i obtained results and manually fitted them. Of course, as usually happens, kernel broke and all i have is output (output in rtable form). So i decided simply export-import them and continue my manipulations.

All i see is "export to ml form". So i did it. And after that i tried to reimport them via

MathML[Import]

Scaling in graphs

January 25 2012 by icegood 255 Maple

How to change "Scaling" in order to during "zoom in" coordinates x and y zoomed in user defined way?

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