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jscl.math.operator.number.ModPow Maven / Gradle / Ivy

package jscl.math.operator.number;

import jscl.math.Generic;
import jscl.math.JsclInteger;
import jscl.math.NotIntegerException;
import jscl.math.Variable;
import jscl.math.operator.Operator;

import javax.annotation.Nonnull;

public class ModPow extends Operator {

	public static final String NAME = "modpow";

	public ModPow(Generic integer, Generic exponent, Generic modulo) {
		super(NAME, new Generic[]{integer, exponent, modulo});
	}

	private ModPow(Generic parameters[]) {
		super(NAME, parameters);
	}

	@Override
	public int getMinParameters() {
		return 3;
	}

	public Generic selfExpand() {
		try {
			JsclInteger en = parameters[0].integerValue();
			JsclInteger exponent = parameters[1].integerValue();
			JsclInteger modulo = parameters[2].integerValue();
			return en.modPow(exponent, modulo);
		} catch (NotIntegerException e) {
		}
		return expressionValue();
	}

	@Nonnull
	@Override
	public Operator newInstance(@Nonnull Generic[] parameters) {
		return new ModPow(parameters);
	}

	@Nonnull
	public Variable newInstance() {
		return new ModPow(null, null, null);
	}
}




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