[pstricks] \psPrintValue & /MoverN

[Luis Sequeira]

>> Hi all
>> 
>> I'm trying to use \multido to print a row of binomial coefficients using \psPrintValue.
>> 
>> However I think it's my lack of understanding with the way the PS stack works and also of \psPrintValue.
>> 
>> Doing \psPrintValue{3 0 /MoverN} shows "MoverN".
>> 
>> Doing \psPrintValue{/MoverN 3 0} shows "0" (which is just the second "0")
>> 
>> How should I get the two numbers required into the stack?
>> 
>> Thanks
>> 
>> Hubert
>> 
> 
> The command should print the value that is at the top of the stack.
> The operands are supposed to be put on the stack first, and then the operator should be applied; hence there is no surprise in the second version printing 0. 
> 
> I think the question is how MoverN is defined. I haven't been able to find its definition. Regular postscript operators like "add" or "div" don't have a slash prepended to them.
> Trying your example without the slash gave a postscript error, which indicates that MoverN is not a recognized operator. 
> 
> Where is that MoverN defined (and how)?
> 
> Luis Sequeira

I just updated my TeX distribution (with the new MacTeX 2012 - the packaged mac version of TeXLive 2012).
Now I can really test your code, and give you the answer: drop the slash:

   \psPrintValue{3 0 MoverN}

gives 1, as expected; although for other values, I get a decimal place - for example, 28,0 instead of 28 for \psPrintValue{8 2 MoverN}

Luis Sequeira