optimized math examples
Project: http://git-wip-us.apache.org/repos/asf/tinkerpop/repo Commit: http://git-wip-us.apache.org/repos/asf/tinkerpop/commit/9cdc47c3 Tree: http://git-wip-us.apache.org/repos/asf/tinkerpop/tree/9cdc47c3 Diff: http://git-wip-us.apache.org/repos/asf/tinkerpop/diff/9cdc47c3 Branch: refs/heads/TINKERPOP-1600 Commit: 9cdc47c3876ab3326de096a66228ccd43d8a42ca Parents: f992cdf Author: Daniel Kuppitz <daniel_kupp...@hotmail.com> Authored: Tue Jan 17 17:52:45 2017 +0100 Committer: Daniel Kuppitz <daniel_kupp...@hotmail.com> Committed: Tue Jan 17 17:52:45 2017 +0100 ---------------------------------------------------------------------- docs/src/recipes/appendix.asciidoc | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) ---------------------------------------------------------------------- http://git-wip-us.apache.org/repos/asf/tinkerpop/blob/9cdc47c3/docs/src/recipes/appendix.asciidoc ---------------------------------------------------------------------- diff --git a/docs/src/recipes/appendix.asciidoc b/docs/src/recipes/appendix.asciidoc index e9d13aa..55fa45d 100644 --- a/docs/src/recipes/appendix.asciidoc +++ b/docs/src/recipes/appendix.asciidoc @@ -169,9 +169,9 @@ _Methods for performing some basic mathematical operations in the "modern" graph ---- g.V().values("age").sum() // sum all ages g.V().values("age").fold(1, mult) // multiply all ages -g.V().values("age").map(union(identity(), constant(-1)).sum()) // subtract 1 -g.V().values("age").map(union(identity(), identity()).sum()) // multiply by 2 (simple) -g.V().values("age").map(union(identity(), constant(2)).fold(1, mult)) // multiply by 2 (generally useful for multiplications by n): +g.withSack(0).V().values("age").sack(sum).sack(sum).by(constant(-1)).sack() // subtract 1 +g.withSack(0).V().values("age").sack(sum).sack(sum).sack() // multiply by 2 (simple) +g.withSack(0).V().values("age").sack(sum).sack(mult).by(constant(2)).sack() // multiply by 2 (generally useful for multiplications by n) ---- [[appendix-g]] @@ -259,4 +259,4 @@ g.V().as("a"). group(). by(select(keys).unfold()). by(select(values).unfold().unfold().fold())) ----- \ No newline at end of file +----
