> Last and certainly not least in the port of FDLIBM to Java, the > transcendental methods for sin, cos, and tan. > > Some more tests are to be written in the StrictMath directory to verify that > the StrictMath algorihtm for sin/cos/tan is being used rather than a > different one. However, I wanted to get the rest of the change out for review > first. > > The sin/cos/tan methods are grouped together since they share the same > argument reduction logic. Argument reduction is the process of mapping an > argument of a function to an argument in a restricted range (and possibly > returning some function of the reduced argument). For sin, cos, and tan, > since they are fundamentally periodic with respect to a multiple of pi, > argument reduction is done to find the remainder of the original argument > with respect to pi/2.
Joe Darcy has updated the pull request with a new target base due to a merge or a rebase. The pull request now contains 20 commits: - Merge branch 'master' into JDK-8302027 - Add test cases with Math and StrictMath differ on a given input. - Add more tests. - Add note explaining goto translation. - Update src/java.base/share/classes/java/lang/FdLibm.java Co-authored-by: Andrey Turbanov <turban...@gmail.com> - Update src/java.base/share/classes/java/lang/FdLibm.java Co-authored-by: Andrey Turbanov <turban...@gmail.com> - Update src/java.base/share/classes/java/lang/FdLibm.java Co-authored-by: Andrey Turbanov <turban...@gmail.com> - Update src/java.base/share/classes/java/lang/FdLibm.java Co-authored-by: Andrey Turbanov <turban...@gmail.com> - Update src/java.base/share/classes/java/lang/FdLibm.java Co-authored-by: Andrey Turbanov <turban...@gmail.com> - Update src/java.base/share/classes/java/lang/FdLibm.java Co-authored-by: Andrey Turbanov <turban...@gmail.com> - ... and 10 more: https://git.openjdk.org/jdk/compare/9fdbf3cf...0466a98d ------------- Changes: https://git.openjdk.org/jdk/pull/12800/files Webrev: https://webrevs.openjdk.org/?repo=jdk&pr=12800&range=05 Stats: 2305 lines in 7 files changed: 2283 ins; 12 del; 10 mod Patch: https://git.openjdk.org/jdk/pull/12800.diff Fetch: git fetch https://git.openjdk.org/jdk pull/12800/head:pull/12800 PR: https://git.openjdk.org/jdk/pull/12800
