Noon Silk
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 Dec 22 awarded Popular Question Mar 24 comment How to make a binary function associative? (Or define an n-ary function?) Yeah, I won't be editing that file. It seems crazy that I can't make this operator associative! Mar 22 comment How to make a binary function associative? (Or define an n-ary function?) Well, in my case I'm actually performing a matrix direct sum, so I wanted the direct sum symbol. And that operation is associative. So how do I make CirclePlus be associative in the way I want? Mar 22 accepted How to make a binary function associative? (Or define an n-ary function?) Mar 22 comment How to make a binary function associative? (Or define an n-ary function?) I did not see the second underscore there; indeed -- seeing it instantly evaluate is what I want to see! With the underscore this works. Thanks! Mar 22 comment How to make a binary function associative? (Or define an n-ary function?) I can't format the code properly in the comment so I've added it as an edit to the original post. Mar 22 revised How to make a binary function associative? (Or define an n-ary function?) added 233 characters in body Mar 22 comment How to make a binary function associative? (Or define an n-ary function?) No. This is what I have: In[13]:= f[a_,b_]:=a+b; f[a_,b_,c_]:=f[f[a,b],c] CirclePlus=f; 1[CirclePlus]2[CirclePlus]5[CirclePlus]6 Out[16]= f[1,2,5,6] Mar 22 comment How to make a binary function associative? (Or define an n-ary function?) Yes, I did try it. Did you? Mar 22 revised How to make a binary function associative? (Or define an n-ary function?) added 127 characters in body Mar 22 comment How to make a binary function associative? (Or define an n-ary function?) This only works if I have only three terms; it doesn't make it generally associative (i.e. it doesn't work if there are 4 terms.) Mar 22 asked How to make a binary function associative? (Or define an n-ary function?) Jul 2 awarded Curious Jul 20 awarded Yearling Jul 11 comment Clickable Bounded Diagram Thank's alot! (Extra letters to pass 15 character limit.) Jul 11 accepted Clickable Bounded Diagram Jul 11 revised Clickable Bounded Diagram added 258 characters in body Jul 11 comment Clickable Bounded Diagram @Anon - Sorry, it's probably because I forgot to add the 'Needs' statement there; this question is within the ComputationalGeometry package. Jul 11 revised Clickable Bounded Diagram added needs statement Jul 11 asked Clickable Bounded Diagram