which, when entered by hitting CONTROL+SHIFT+ENTER at the same time, will
appear on the Formula Bar as
{=MIN(IF(A1:A10,A1:A10))}
The only time you enter these curly brackets yourself is when you feed some
function a constant array as argument as in
=VLOOKUP(A1,{"a",1;"b",2;"c",3},2,0)
where {"a",1;"b",2;"c",3} represent a 2-column table.
Curly brackets are thus associated with the so-called array formulas and
constant arrays."
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