Create a new Formula from a list of Formula.
Result of previous Formula computation is used as parameter for the next one. So you can chain multiple operations.
$result:=formula_compose (Formula($1+1);Formula($1+2)).call(Null;0) // (0 + 1) + 2 = 3
// or using collection
$formulas:=New collection(Formula($1+1);Formula($1+2)) // add one then add 2
$result:=formula_compose ($formulas).call(Null;0) // (0 + 1) + 2 = 3$operation:=New object("compute";formula_compose ($formulas))
$result:=$operation.compute(3) // (3 + 1) + 2 = 5more in formula_compose
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