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Question: different answers to same command

Question:different answers to same command

rrbaldino 55 Maple 2016
2dmath sum
September 13 2017
1

Why do I get different answers for the same command?

 different_answers.mw


 

``

> 

restart
> 

x := proc (n) options operator, arrow; cos(n*Pi) end proc;

proc (n) options operator, arrow; cos(n*Pi) end proc

 (1)
> 

"f:=k->"sum(k*x(n), n = 2 .. 3);f(1);

0

  

f(1)

 (2)
> 

f := proc (k) options operator, arrow; sum(k*x(n), n = 2 .. 3) end proc;

proc (k) options operator, arrow; sum(k*x(n), n = 2 .. 3) end proc

  

0

 (3)
> 

``


 

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