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How to best divide table by table

Serguei Kaniovski <kaniovsk at wsr.ac.at> writes:
Explain. If tab1 and tab2 have names "in the first column", how do you
expect the divide operation to work? Tables normally do preserve
row/column names in arithmetic:
FALSE TRUE
  5    30    1
  6    20   10
  7     3   28
  8    11   20
  9    21    9
FALSE TRUE
  5     1    1
  6     1    1
  7     1    1
  8     1    1
  9     1    1