Example usage for java.lang StrictMath cosh

Introduction

In this page you can find the example usage for java.lang StrictMath cosh.

Prototype

public static native double cosh(double x);

Source Link

Document

Returns the hyperbolic cosine of a double value.

Usage

From source file:Main.java

public static void main(String[] args) {

    double d1 = (60 * (Math.PI)) / 180, d2 = 0.0, d3 = (1.0 / 0.0);

    double coshValue = StrictMath.cosh(d1);
    System.out.println("Hyperbolic cosine of d1 = " + coshValue);

    coshValue = StrictMath.cosh(d2);
    System.out.println("Hyperbolic cosine of d2 = " + coshValue);

    coshValue = StrictMath.cosh(d3);
    System.out.println("Hyperbolic cosine of d3 = " + coshValue);
}

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From source file:org.esa.beam.util.math.FastMathPerformance.java

public void testCosh() {
    System.gc();// w w  w  .ja  v a  2s  . c  om
    double x = 0;
    long time = System.nanoTime();
    for (int i = 0; i < RUNS; i++)
        x += StrictMath.cosh(i * F1);
    long strictTime = System.nanoTime() - time;

    System.gc();
    double y = 0;
    time = System.nanoTime();
    for (int i = 0; i < RUNS; i++)
        y += FastMath.cosh(i * F1);
    long fastTime = System.nanoTime() - time;

    System.gc();
    double z = 0;
    time = System.nanoTime();
    for (int i = 0; i < RUNS; i++)
        z += Math.cosh(i * F1);
    long mathTime = System.nanoTime() - time;

    report("cosh", x + y + z, strictTime, fastTime, mathTime);
}

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