100 lines
2.3 KiB
Java
100 lines
2.3 KiB
Java
package org.warp.picalculator.math.functions;
|
|
|
|
import java.util.ArrayList;
|
|
import java.util.List;
|
|
|
|
import org.nevec.rjm.NumeroAvanzatoVec;
|
|
import org.nevec.rjm.Rational;
|
|
import org.warp.picalculator.Error;
|
|
import org.warp.picalculator.Errors;
|
|
import org.warp.picalculator.Utils;
|
|
import org.warp.picalculator.math.MathematicalSymbols;
|
|
|
|
public class RootSquare extends AnteriorFunction {
|
|
|
|
public RootSquare(Function parent, Function value) {
|
|
super(parent, value);
|
|
}
|
|
|
|
@Override
|
|
public String getSymbol() {
|
|
return MathematicalSymbols.SQUARE_ROOT;
|
|
}
|
|
|
|
@Override
|
|
public void generateGraphics() {
|
|
variable.setSmall(small);
|
|
variable.generateGraphics();
|
|
|
|
height = getVariable().getHeight() + 2;
|
|
width = 1 + 4 + getVariable().getWidth() + 1;
|
|
line = getVariable().getLine() + 2;
|
|
}
|
|
|
|
@Override
|
|
protected boolean isSolvable() throws Error {
|
|
if (variable instanceof Number) {
|
|
if ((((Number)variable).pow(new Number(this.parent, new Rational(1, 2))).getTerm().isBigInteger(true))) {
|
|
return true;
|
|
}
|
|
}
|
|
return false;
|
|
}
|
|
|
|
@Override
|
|
public List<Function> solveOneStep() throws Error {
|
|
if (variable == null) {
|
|
throw new Error(Errors.SYNTAX_ERROR);
|
|
}
|
|
ArrayList<Function> result = new ArrayList<>();
|
|
if (variable.isSolved()) {
|
|
try {
|
|
Number var = (Number) getVariable();
|
|
result.add(var.pow(new Number(this.parent, new Rational(1, 2))));
|
|
} catch(NullPointerException ex) {
|
|
throw new Error(Errors.ERROR);
|
|
} catch(NumberFormatException ex) {
|
|
throw new Error(Errors.SYNTAX_ERROR);
|
|
} catch(ArithmeticException ex) {
|
|
throw new Error(Errors.NUMBER_TOO_SMALL);
|
|
}
|
|
} else {
|
|
List<Function> l1 = new ArrayList<Function>();
|
|
if (variable.isSolved()) {
|
|
l1.add(variable);
|
|
} else {
|
|
l1.addAll(variable.solveOneStep());
|
|
}
|
|
|
|
for (Function f : l1) {
|
|
result.add(new RootSquare(this.parent, (Function)f));
|
|
}
|
|
}
|
|
return result;
|
|
}
|
|
|
|
@Override
|
|
public void draw(int x, int y) {
|
|
// glColor3f(0, 255, 0);
|
|
// glFillRect(x,y,width,height);
|
|
// glColor3f(0, 0, 0);
|
|
|
|
Utils.writeSquareRoot(getVariable(), x, y, small);
|
|
}
|
|
|
|
@Override
|
|
public int getWidth() {
|
|
return width;
|
|
}
|
|
|
|
@Override
|
|
public int getHeight() {
|
|
return height;
|
|
}
|
|
|
|
@Override
|
|
public int getLine() {
|
|
return line;
|
|
}
|
|
}
|