public AlgoCompleteSquare(Construction cons, String label, GeoFunction f) {
super(cons);
this.f = f;
a = new MyDouble(kernel);
h = new MyDouble(kernel);
k = new MyDouble(kernel);
fv = new FunctionVariable(kernel);
ExpressionNode squareE = new ExpressionNode(kernel, a);
Function squareF = new Function(squareE, fv);
squareF.initFunction();
square = new GeoFunction(cons);
setInputOutput();
square.setFunction(squareF);
compute();
lastDeg = 0;
square.setLabel(label);
}
@Override
public void compute() {
// cover undefined cases
if (!degree.isDefined() || !min.isDefined() || !max.isDefined() || degree.getDouble() < 0) {
polynomial.setUndefined();
return;
}
int lower = (int) Math.ceil(min.getDouble());
int upper = (int) Math.floor(max.getDouble());
if (lower > upper || (lower == 0 && upper == 0)) {
polynomial.setUndefined();
return;
}
// input is sane, we can do the computation
int deg = (int) Math.floor(degree.getDouble());
ExpressionNode varExpr = new ExpressionNode(kernel, fv);
ExpressionNode newExpr = randomCoef(deg != 0);
for (int i = 1; i <= deg; i++) {
newExpr = varExpr.power(new MyDouble(kernel, i)).multiply(randomCoef(i != deg)).plus(newExpr);
}
f.setExpression(newExpr, fv);
polynomial.setFunction(f);
}