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Implementation of various mathematical curves that define themselves over a set of control points. The API is written in Java. The curves supported are: Bezier, B-Spline, Cardinal Spline, Catmull-Rom Spline, Lagrange, Natural Cubic Spline, and NURBS.

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package com.graphbuilder.math.func;

/**
The natural logarithm function.

@see java.lang.Math#log(double)
*/
public class LnFunction implements Function {

	public LnFunction() {}

	/**
	Returns the natural logarithm of the value at index location 0.
	*/
	public double of(double[] d, int numParam) {
		return java.lang.Math.log(d[0]);
	}

	/**
	Returns true only for 1 parameter, false otherwise.
	*/
	public boolean acceptNumParam(int numParam) {
		return numParam == 1;
	}

	public String toString() {
		return "ln(x)";
	}
}