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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 hyperbolic arc sine function.
*/
public class AsinhFunction implements Function {

	public AsinhFunction() {}

	/**
	Returns the value of ln(x + sqrt(1 + x²)), where x is the value at index
	location 0.
	*/
	public double of(double[] d, int numParam) {
		return Math.log(d[0] + Math.sqrt(1 + d[0] * d[0]));
	}

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

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