public Generic compute() {
try {
JSCLInteger en = parameter[0].integerValue();
return en.phi();
} catch (NotIntegerException e) {
}
return expressionValue();
}
public Generic identity(Generic a, Generic b) {
Generic ta = new Cot(a).evalsimp();
Generic tb = new Cot(b).evalsimp();
return new Frac(ta.multiply(tb).subtract(JSCLInteger.valueOf(1)), ta.add(tb)).evalsimp();
}
public Generic derivative(int n) {
return JSCLInteger.valueOf(1).add(new Cot(parameter[0]).evaluate().pow(2)).negate();
}
public Generic antiderivative(int n) throws NotIntegrableException {
return new Log(JSCLInteger.valueOf(4).multiply(new Sin(parameter[0]).evaluate())).evaluate();
}
