... for the explanation.

... for the explanation.

I just want to say thanks to acer for writing this up - (as usual) a very useful explanation for all!

I just want to say thanks to acer for writing this up - (as usual) a very useful explanation for all!

Thansk for commenting.

There is no classic inteface on my platform (linux 64bit)

Editing a document or a worksheet makes no difference - the scheme does not work in either.

i see! Thanks for taking the time to explain. 

It might be useful to at some stage include this behavior as a "gotcha" in the 'subs' (or 'assume') help page - just a trivial example would probably be helpful. 

i see! Thanks for taking the time to explain. 

It might be useful to at some stage include this behavior as a "gotcha" in the 'subs' (or 'assume') help page - just a trivial example would probably be helpful. 

Thanks for your answer - I missed the previous question.

Do you consider this a desirable behavior (the need to set an "inplace" flag if one of the variables has assumptions set)? I would personally prefer the substitution behavior to be the same regardlsess of the assumptions.

Thanks for your answer - I missed the previous question.

Do you consider this a desirable behavior (the need to set an "inplace" flag if one of the variables has assumptions set)? I would personally prefer the substitution behavior to be the same regardlsess of the assumptions.

Thanks for taking a look. I will report it.

Thanks for taking a look. I will report it.

so it looks like perhaps a round off error!? If I increase 'Digits' the problem disappears. I am still puzzled however how 'pointplot' shows the right plot', where as 'plot' does not.

works - thanks a lot.

works - thanks a lot.

Hi Acer:

Doing this:

newexplore(plot(1+a*sin(t), t=0..10), variables=[a=0..10]);

works well.

However "exploring" an expression does not:

f:=1+a*sin(t);
newexplore(plot(f, t=0..10), variables=[a=0..10]);

does not. I was wondering if there is an easy way to force newexplore to evaluate f, before executing the Explore function. 'eval' does not seem to work. I get around it with:

eval(subs(w=f, 'newexplore(plot(w, t=0..10), variables=[a=0..10])'));

but perhaps I'm missing an obvious/pretty "maple" way? This is clarly useful when f is a result of some complicated calculation with potentially many variables.

thanks again for your time.