IfFunction.java

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package com.graphbuilder.math.func;

public class IfFunction implements Function {

    public double of(double[] param, int numParam) {
        
        final boolean condition = (0 == param[0]);
        double result = 0.0;
        
        if (condition) {
            result = param[1];
        } else if (numParam == 3) {
            result = param[2];
        }
        return result;
    }

    public boolean acceptNumParam(int numParam) {
        return (numParam==2 || numParam==3);
    }

    public String toString() {
        return "if(condition,val_if_true,val_if_false)";
    }

}