Caution, certain kinds of earlier input can affect the results from using the 2D Input syntax for operator assignment.
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The following now produces a remember-table assignment,
instead of assigning a procedure to name f, even though by default
Typesetting:-Settings(functionassign)
is set to true.
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With the previous line of code commented-out the following
line assigns a procedure to name f, as expected.
If you uncomment the previous line, and re-execute the whole
worksheet using !!! from the menubar, then the following will
do a remember-table assignment instead.
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Download operator_assignment_2dmath.mw