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Expression exp = new
Expression("(x + y)/2"
);

Map<String, BigDecimal> variables = new
HashMap<String, BigDecimal>();
variables.put("x", new
BigDecimal("4.32"
));
variables.put("y", new
BigDecimal("342.1"
));

BigDecimal result = exp.eval(variables);

System.out
.println(result);


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