.FCSys.Utilities.Chemistry.charge .FCSys.Utilities.Chemistry.chargeThis function returns the net electrical charge associated with
a species represented by a chemical formula (formula).
If the charge number is not given explicitly in the formula, then
it is assumed to be zero. A "+" or "-" without any immediately
following digits is interpreted as a charge of +1 or -1,
respectively. If there is an error in the chemical formula, then 0
is returned.
Example:
charge("Hg2+2") returns 2.
function charge
extends Modelica.Icons.Function;
input String formula "Chemical formula";
output Integer z "Charge number" annotation(
Dialog(__Dymola_label = "<html><i>z</i></html>"));
end charge;