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19c334714fa0ab777a889052b37f2f331929ae83
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presentations
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tcl
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fac.tcl
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proc
fac
{
x
}
{
if
{
$
x
<=
1
}
{
return
1
}
expr
{
$
x
*
[
fac
[
expr
$
x
-
1
]]
}
}