 <a href="ReversePolishMath.html#rpnMathematics">rpn Mathematics</a>).  Here is an example:
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`foo bar'
{
  new .a.         # Get storage
  .a. = 10        # Store a local value
  show "Locally, .a.=" .a. " (expect 10)"
  delete .a.      # Delete this local one
}
.a. = 1
show "Global version has .a.=" .a. " (expect 1)"
foo bar
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To see if a given named variable (o