public Expression Parse(MathParser parser, Token <RMathToken> token)
{
var e = new AbsExpression(parser.ParseExpression());
parser.Take(RMathToken.Pipe);
return(e);
}
public Completion Abs(object a)
{
ExecutionEnvironment e = new ExecutionEnvironment();
e.RegisterValue("a", a);
AbsExpression abs = new AbsExpression();
abs.Args[0] = new Identifier("a");
return(abs.Execute(e));
}
