85 lines
2.5 KiB
Java
Executable File
85 lines
2.5 KiB
Java
Executable File
package org.warp.picalculator.math.functions;
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import java.math.BigInteger;
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import org.warp.picalculator.Error;
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import org.warp.picalculator.gui.expression.blocks.Block;
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import org.warp.picalculator.gui.expression.blocks.BlockContainer;
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import org.warp.picalculator.gui.expression.blocks.BlockSquareRoot;
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import org.warp.picalculator.math.Function;
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import org.warp.picalculator.math.FunctionSingle;
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import org.warp.picalculator.math.MathContext;
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import it.unimi.dsi.fastutil.objects.ObjectArrayList;
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public class RootSquare extends FunctionSingle {
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public RootSquare(MathContext root, Function value) {
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super(root, value);
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}
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@Override
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protected boolean isSolvable() {
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if (parameter instanceof Number) {
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if (mathContext.exactMode == false) {
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return true;
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}
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try {
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Number exponent = new Number(mathContext, BigInteger.ONE);
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exponent = exponent.divide(new Number(mathContext, 2));
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final Number resultVal = ((Number) parameter).pow(exponent);
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final Number originalVariable = resultVal.pow(new Number(mathContext, 2));
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if (originalVariable.equals(parameter)) {
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return true;
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}
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} catch (Exception | Error ex) {
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}
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}
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return false;
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}
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@Override
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public ObjectArrayList<Function> solve() throws Error, InterruptedException {
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final ObjectArrayList<Function> result = new ObjectArrayList<>();
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if (mathContext.exactMode) {
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Number exponent = new Number(mathContext, BigInteger.ONE);
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exponent = exponent.divide(new Number(mathContext, 2));
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result.add(((Number) parameter).pow(exponent));
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} else {
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final Number exp = new Number(mathContext, 2);
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final Number numb = (Number) parameter;
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result.add(numb.pow(new Number(mathContext, 1).divide(exp)));
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}
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return result;
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}
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@Override
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public boolean equals(Object o) {
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if (o instanceof RootSquare) {
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return ((RootSquare) o).getParameter().equals(parameter);
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}
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return false;
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}
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@Override
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public RootSquare clone() {
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return new RootSquare(mathContext, parameter);
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}
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@Override
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public ObjectArrayList<Block> toBlock(MathContext context) throws Error {
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ObjectArrayList<Block> result = new ObjectArrayList<>();
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BlockSquareRoot bsqr = new BlockSquareRoot();
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BlockContainer bsqrc = bsqr.getNumberContainer();
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for (Block b : getParameter().toBlock(context)) {
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bsqrc.appendBlockUnsafe(b);
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}
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bsqrc.recomputeDimensions();
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bsqr.recomputeDimensions();
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result.add((bsqr));
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return result;
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}
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}
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