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Topic: How to think about Map[ ] ?
Replies: 3   Last Post: Aug 25, 1996 6:04 PM

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AES

Posts: 72
Registered: 12/7/04
How to think about Map[ ] ?
Posted: Aug 21, 1996 2:06 AM
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I can understand that

Map[f,{a,b,c}] --> {f[a], f[b], f[c]}

But would someone want to give a little tutorial on how to understand
the (what seem to me) bizarre results I get when I try various
combinations like

Map[f, a + b + c]

Map[f, a + b - c]

Map[f, a * b * c]

Map[f, a / b / c]

and other more complex forms. (I'm particularly confused by the
difference between the * * and the / / cases. I'm not acquainted
with LISP, and have never encountered any other form of mathematics
that operates as Map seems to.)

Thanks...







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