And
Returns logical value: 1(True) or 0(False).
syntax
And(
number1
;
number2
;[
number3
;...])
insert
logical value: 1 or 0.
example
And(1;1) = 1
And(1;0) = 0
And(2>1;3>2) = 1
And(2>=1;3<2) = 0
If(And(2>=1;3<2);10;20) = 20