Nand

block Nand "Logical 'nand': y = not (u1 and u2)"
    extends Blocks.Interfaces.partialBooleanSI2SO;
equation
    y = not (u1 and u2);

    annotation (
        Icon(
            coordinateSystem(
                preserveAspectRatio = true,
                extent = {
                    {-100, -100}, 
                    {100, 100}}),
            graphics = {
                Text(
                    extent = {
                        {-90, 40}, 
                        {90, -40}},
                    textString = "nand")}),
        Documentation(info = "<html>\n<p>\nThe output is <strong>true</strong> if at least one input is <strong>false</strong>, otherwise\nthe output is <strong>false</strong>.\n</p>\n</html>"));
end Nand;