Example usage for org.apache.commons.math4.util FastMath tanh

Introduction

In this page you can find the example usage for org.apache.commons.math4.util FastMath tanh.

Prototype

public static double tanh(double x) 

Source Link

Document

Compute the hyperbolic tangent of a number.

Usage

From source file:com.ericbarnhill.arrayMath.ArrayMath.java

/**
  * In-place element-wise {@code tanh} of a {@code double[]}. Returns reference to first passed array.
  *//from  www .  j a v a  2 s.  c  o  m
  * @param f {@code double[]} array.
  * @return  {@code double[]} array.
  * 
  * @since 0.1
  */
public static double[] tanh(double[] f) {
    final int fi = f.length;
    for (int i = 0; i < fi; i++) {
        f[i] = FastMath.tanh(f[i]);
    }
    return f;
}

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From source file:com.ericbarnhill.arrayMath.ArrayMath.java

/**
  * Element-wise {@code tanh} of a {@code double[]}. Returns deep copy.
  *//  w  ww.j ava 2s.co  m
  * @param f {@code double[]} array.
  * @return  {@code double[]} array.
  * 
  * @since 0.1
  */
public static double[] tanhC(double[] f) {
    final int fi = f.length;
    double[] h = new double[fi];
    for (int i = 0; i < fi; i++) {
        h[i] = FastMath.tanh(f[i]);
    }
    return h;
}

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