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package com.graphbuilder.math.func;

/**

The square root function.

@see java.lang.Math#sqrt(double)

*/

public class SqrtFunction implements Function {

        public SqrtFunction() {}

        /**

        Returns the square root of the value at index location 0.

        */

        public double of(double[] d, int numParam) {

                return java.lang.Math.sqrt(d[0]);

        }

        /**

        Returns true only for 1 parameter, false otherwise.

        */

        public boolean acceptNumParam(int numParam) {

                return numParam == 1;

        }

        public String toString() {

                return "sqrt(x)";

        }

}