Attachment 200862 Details for Bug 234689 – Java test program

Java test program

CheckMathIssue.java (text/plain), 3.27 KB, created by thgude on 2019-01-07 10:41:04 UTC

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Creator: thgude

Created: 2019-01-07 10:41:04 UTC

Size: 3.27 KB

patch

obsolete

>/*
>This small test program illustrates the incorrect results of the Math.asin() method
>on FreeBSD 11.2 and openjdk8-8.192. The output of this program has been collected for four
>different platforms and is included here:
>
>Operating System: FreeBSD amd64 11.2-STABLE
>Java: 1.8.0_192 Oracle Corporation
>Java Specification: Java Platform API Specification Oracle Corporation 1.8
>Java VM: 25.192-b26 Oracle Corporation
>Java VM Specification: Java Virtual Machine Specification Oracle Corporation 1.8
>asin(0.5)= 0.5
>asin(-0.38147821481517075)= -0.38147821481517075
>StrictMath asin(0.5)= 0.5
>StrictMath asin(-0.38147821481517075)= -0.38147821481517075
>
>Operating System: FreeBSD amd64 11.2-STABLE
>Java: 1.8.0_172 Oracle Corporation
>Java Specification: Java Platform API Specification Oracle Corporation 1.8
>Java VM: 25.172-b11 Oracle Corporation
>Java VM Specification: Java Virtual Machine Specification Oracle Corporation 1.8
>asin(0.5)= 0.5235987755982989
>asin(-0.38147821481517075)= -0.391394915510742
>StrictMath asin(0.5)= 0.5235987755982989
>StrictMath asin(-0.38147821481517075)= -0.391394915510742
>
>Operating System: Mac OS X x86_64 10.14.2
>Java: 1.8.0_192 Oracle Corporation
>Java Specification: Java Platform API Specification Oracle Corporation 1.8
>Java VM: 25.192-b12 Oracle Corporation
>Java VM Specification: Java Virtual Machine Specification Oracle Corporation 1.8
>asin(0.5)= 0.5235987755982989
>asin(-0.38147821481517075)= -0.391394915510742
>StrictMath asin(0.5)= 0.5235987755982989
>StrictMath asin(-0.38147821481517075)= -0.391394915510742
>
>Operating System: Linux arm 4.14.78-2-osmc
>Java: 1.8.0_191 Oracle Corporation
>Java Specification: Java Platform API Specification Oracle Corporation 1.8
>Java VM: 25.191-b12 Oracle Corporation
>Java VM Specification: Java Virtual Machine Specification Oracle Corporation 1.8
>asin(0.5)= 0.5235987755982989
>asin(-0.38147821481517075)= -0.391394915510742
>StrictMath asin(0.5)= 0.5235987755982989
>StrictMath asin(-0.38147821481517075)= -0.391394915510742
>
>*/
>public class CheckMathIssue {
>	public static void main(String[] args) {
>		System.out.println("Operating System: " + System.getProperty("os.name") 
>			+ " " + System.getProperty("os.arch")
>			+ " " + System.getProperty("os.version"));
>
>		System.out.println("Java: " + System.getProperty("java.version") 
>			+ " " + System.getProperty("java.vendor"));
>
>		System.out.println("Java Specification: " + System.getProperty("java.specification.name") 
>			+ " " + System.getProperty("java.specification.vendor")
>			+ " " + System.getProperty("java.specification.version"));
>
>		System.out.println("Java VM: " + System.getProperty("java.vm.version") 
>			+ " " + System.getProperty("java.vm.vendor"));
>
>		System.out.println("Java VM Specification: " + System.getProperty("java.vm.specification.name") 
>			+ " " + System.getProperty("java.vm.specification.vendor")
>			+ " " + System.getProperty("java.vm.specification.version"));
>
>		double value1 = Math.asin(0.5);
>		double value2 = Math.asin(-0.38147821481517075);
>		double value3 = StrictMath.asin(0.5);
>		double value4 = StrictMath.asin(-0.38147821481517075);
>		System.out.println("asin(0.5)= " + value1);
>		System.out.println("asin(-0.38147821481517075)= " + value2);
>		System.out.println("StrictMath asin(0.5)= " + value3);
>		System.out.println("StrictMath asin(-0.38147821481517075)= " + value4);
>	}
>}

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Attachments on bug 234689: 200862