Example usage for java.lang StrictMath cos

Introduction

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

Prototype

public static native double cos(double a);

Source Link

Document

Returns the trigonometric cosine of an angle.

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);

    System.out.println("Trigonometric cosine of d1 = " + StrictMath.cos(d1));

    System.out.println("Trigonometric cosine of d2 = " + StrictMath.cos(d2));

    System.out.println("Trigonometric cosine of d3 = " + StrictMath.cos(d3));
}

---

From source file:net.nicoulaj.benchmarks.math.DoubleCos.java

@GenerateMicroBenchmark
public void strictmath(BlackHole hole) {
    for (int i = 0; i < data.length - 1; i++)
        hole.consume(StrictMath.cos(data[i]));
}

---

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

public void testCos() {
    System.gc();/* ww  w .j  a v  a 2s  . c  o m*/
    double x = 0;
    long time = System.nanoTime();
    for (int i = 0; i < RUNS; i++)
        x += StrictMath.cos(i * F1);
    long strictTime = System.nanoTime() - time;

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

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

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

---

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

@Test
public void testMathCosStrict() {
    for (double i = 0; i < numItr; ++i) {
        double val = StrictMath.cos(i);
    }/*from  w  w  w  .j a v a2s.  c om*/
}

---