function parameters

• Subject: function parameters
• From: Mikhail Khokhlov
• Date: Wed, 21 Apr 2010 13:15:04 +0400

Hi,

Is it a bug, or am I doing something wrong?

(%i1) myfun(a) := ev(a);
(%o1)                          myfun(a) := ev(a)
(%i2) myfun(a+b);
(%o2)                               2 b + a

Obviously, "a" evaluates to "a+b" twice in this example. Why does this happen? Function 
parameter should evaluate to its value only once, regardless of what its name is.

Best regards,
Mikhail Khokhlov

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