Tree:
47706b505f
0.12
0.13
0.14
0.15
0.16
0.17
0.18
0.19
0.20
0.90
1.0
1.1
1.2
1.3
1.4
1.5
1.6
1.7
130465-tp-merge-avail
135968-ci-corefullclusterrestartit-testshrink-cluster=old-failing
2.0
2.1
2.2
2.3
2.4
2024/02/08/ES-6685-transport-action-changes-final
2025/04/18/netty-flow-control-tests
2gavy-patch-1
5.0
5.1
5.2
5.3
5.4
5.5
5.6
6.0
6.1
6.2
6.3
6.4
6.5
6.6
6.7
6.8
7.0
7.1
7.10
7.11
7.12
7.13
7.14
7.15
7.16
7.17
7.17-ci-pipelines-add-ubuntu-2404
7.2
7.3
7.4
7.5
7.6
7.7
7.8
7.9
8.0
8.1
8.10
8.11
8.12
8.13
8.14
8.15
8.16
8.17
8.18
8.19
8.2
8.3
8.4
8.5
8.6
8.7
8.8
8.9
9.0
9.1
9.2
AndyHunt66-patch-1
CCR_doc-followingClusterEmphasize
ChrisHegarty-patch-1
JohannesMahne-patch-1
JohannesMahne-patch-2
JohannesMahne-patch-3
JohannesMahne-patch-4
JohannesMahne-patch-5
Leaf-Lin-89619-doc-highlight
Leaf-Lin-license
Leaf-Lin-patch-1
Leaf-Lin-patch-2
Leaf-Lin-patch-3
Leaf-Lin-uni-directional-CCR-DR
Leaf-adding-autoscale-policy-details
LucaWintergerst-patch-1
PhaedrusTheGreek-patch-2
TheRiffRafi-patch-1
ZachBrisson-Elastic-patch-1
ZachBrisson-Elastic-patch-2
add-amazonlinux-platform-support
add-configuration-cache-evaluation-script
add-csp-vulnerabilities-index-privileges
add-fips-docker-image
add-forcemerge-ks
add-linux-aarch64-to-bwc-setup-plugin
add-linux-aarch64-to-bwc-setup-plugin-7.x
add-manage-inference
add-percolator-indice-roles
add-periodic-ea-coverage-pipeline
add-periodic-ea-coverage-pipeline-painless
add-support-for-getting-last-element-of-array
add-wolfi-ess
addParametersToPerformInference
addPrivilegesForCspPlugin
add_min_score_linear_retriever
add_specific_error
albertzaharovits-doc-dls-fls-remote-index-permitted
albertzaharovits-doc-dls-fls-remote-index-permitted-1
antrodrob-patch-1
apm-add-create_index-permission
apply-precommit-checks-for-qa
approksiu-patch-1
artem/8.x-add-mongodb-connector-known-issue
asmith-elastic-patch-1
avoidNPEInAdaptiveallocations
azure_upgrade6
backport-86223
backport/7.17/pr-116172
backport/8.17/pr-11938
backport/8.x/pr-122823_pr-124650
backport/9.1/pr-133204
backport/undo_transient_settings
bczifra-add-rest-event-types-link
benironside-typo-fix
bernarmn-mnb-patch-1
berto-lstc-patch-1
bk-cost-opt-combined
bk-cost-opt-sizing
bk-cost-opt-testclusters
blobcachemetrics
bmorelli25-patch-1
breakup-release-tests
breskeby/fix-windows-invalid-java-home-paths
build-against-fixed-build-ids
build-bwc-without-es-runtime-7x
buildkite-migration
buildkite-migration-717
buildkite-migration-periodic-arm
buildkite-sandbox
buildkite-settings-tweaks
buildkite-test-more-parallel
bwc-explicit-branches-version
categorize_text_ga
cbuescher-ES-7669
cc5b2b7dab2b4b7b98a3a3eae71e8f98-debugging-branch
ci-pipelines-add-debian-12
ci-pipelines-add-oraclelinux-9
ci-pipelines-add-ubuntu-2404
ci-pipelines-add-ubuntu-2404-aarch64
ckauf-date-ingest-year-1
cleydyr-patch-1
codingogre-patch-1
combat-lucene-10-0-0
commitinfo
compat_rest_api
copilot/fix-19f5c557-8534-4d19-8370-d71b44b91842
cps/prohibit-_project-mappings
crisdarocha-patch-1
crispybacon-patch-2
custom-inference-service
custom_generated_location
cuvs-snapshot
cuvs-snapshot-pr-test-01
damien-renier-elastic-patch-1
danajuratoni-patch-1
danajuratoni-patch-2
danajuratoni-patch-3
debadair-read-only
debug-os-packaging-config-time
debug-pipeline-fs-issue
default-config-first
defaultEISEndpoint
defaultEndpointsFF
denisgils-patch-1
deprecateTaskSettings
detached
detached2
detached3
dharada-patch-1
dharada-patch-2
direct-io
disable-check-pending-flushes
dmitrii/test-mtls
do-not-delete_legacy-docs
docker_arm_beats_fix
dockerfile_extension
docs-transform-job-ilm-limitation
docs/cluster-health-link-fix
docs__changelog-90302
docs__time-series-audit
dynamic-template-unmatch-mapping-type
ecs-test
eis-text-embedding-task-type
eisUnifiedMergeContentOptional
elasticsearch-teamcity
enhancement/add-search-load-autoscaling-transport-version
enhancement/super-thin-indexing-poc
enhancement/super-thin-indexing-poc-second
enhancement/task-tracking-for-scaling-executor
enroll-as-a-param
enterprise-search/rex-demo
entitlement-init-debugging
entitlements/apm_agent
entity-store-permissions
es-gpu
esql/agg-func-mapping
esql/maxString
esql/promql
esql/random-function
esql/search
essodjolo-patch-1
failure-store-cft
failure-store-naming-scheme
fall-back-jdk17-images
fast-checkout-agent
fdartayre-patch-1
feat/extend_kibana_system_osquery_manager
feat/sql-multivalue
feature-fleet-agent-policies-enrich
feature/0-copy-indexing
feature/84811-disk-usage-indicator
feature/PCA
feature/apm-integration
feature/desired-balance-allocator
feature/esql
feature/esql_case_insensitive
feature/esql_search
feature/logsdb-ignore-dynamic-beyond-limit
feature/repository-s3-sdk-v2-upgrade
feature/semantic-text
fix-buildkite-period-template
fix-cc-buildfinished-hook
fix-configuration-cache-validation-build
fix-debmetadatatests
fix-docker-packaging-tests
fix-fips-rpm-checksums
fix-indenting-code-block
fix-ironbank-packaging-tests
fix-jdk-download-for-linux-arm64
fix-licenseheaders-func-test-on-win
fix-lucene-bwc-test
fix-packaging-tests
fix-spaces-docs
fix-stop-old-elasticsearch-fixture
fix-testcluster-jvmoptions-on-windows
fix/84927-significant-texts-yaml-test
fix/97544
fix/connector-put
fixEmptyParsedModels
fleet/fleet-secrets-followup
freakingid-ilm-action-forcemerge
fwc-pipeline-fixes
fwc-tests-task-registration-fix
geekpete-fleet-experimental-for-viewer-role-1
geekpete-patch-1
georgewallace-patch-1
georgewallace-patch-2
georgewallace-patch-3
georgewallace-patch-4
georgewallace-patch-6
giladgal-patch-1
giladgal-patch-2
git-fetch-recurse-submodule
gpu-benchmarks
gradle-update-82
halfMlCpuOnServerless
herrBez-patch-1
herrBez-patch-2
id-is-string
ignore-BwcVersionsTest-on-aarch
ignore-older-version-bwc-tests-with-aarch64
ignore-older-version-bwc-tests-with-aarch64-7.x
ilm-error-not-bootstrapped-time-series-index
ilm-policy-name
index-min-primary-term-generation
integer_precise_convert
intro-javadoc-plugin
introduce-build-benchmark-tests
jalogisch-patch-1
jalogisch-patch-2
jamie-wilson88-patch-1
jbc-debug
jbc-debug-8.18
jbc-debug-9
jbc-debug-main
jdk21/this-escape-gatewaymetastate
jeanfabrice-docpatch-1
jmceniery-patch-1
joshFive-patch-1
jsevidal13-patch-1
juliaElastic-patch-1
kilfoyle-patch-1
kilfoyle-patch-2
kilfoyle-remove-frozen-tier-warning
ldematte/internal-engine-change
ldematte/non-semver-nodeinfo
leemthompo-patch-1
leemthompo-patch-2
leemthompo-patch-3
leemthompo-patch-4
leemthompo-patch-5
leemthompo-patch-filter
leemthompo-patch-flattened
leemthompo-test
lhirlimann-patch-1
lhirlimann-patch-2
local-testing-update-gradle-wrapper-920
log4j_2_25_1
long-term-storage
lucene_snapshot
lucene_snapshot_10_2
lucene_snapshot_10_2_1-SNAPSHOT
lucene_snapshot_10_3
lucene_snapshot_old
lukewhiting-bk-test-run
main
make-distro-download-cc-compatible
marks-branch
mb-es-monitoring-missing-fields
mc-fix-license-tool--build
merlixelastic-patch-1
metering/updates_by_doc
metering_ra_ingested_esmain
metrics_prototype
metricsdb
migrate-primary-term-generation
minscore-linear
ml-eis-integration
ml-pytorch-oom
mm/heap-defaults
mrklaney-patch-1
mrklaney-patch-2
ms-graph-thirdparty-tests
mute-65048-master
mute-flaky-test-40-range-float-range
nathandh22-patch-1
niels-bk-atomic-index-rename-niels
niels-bk-component-template-refactor
niels-bk-force-merge-noop
niels-bk-geoip-fix
niels-bk-health-size
niels-bk-merge-policy-parsing
niels-bk-reserved-state-string
niels-bk-shard-health
niels-bk-skip-ds-reference-check
niels-bk-slm-invocations-fix
non-issue/ES-11323-upload-pool
non-issue/ES-11457-hollow-searches-always
numeric-bugfix
octaavio-patch-1
octaavio-patch-1-1
ocuil-patch-1
online-prewarming-stateless
optimize-functional
packaging-docker-parallel
packer-cache-updates
patch-1
patch-revert-readiness-on-filesettings-106437
patch-serverless
patch/incident-981-serverless-da50e9c11
patch/jdk-downgrade
patch/revert-check-for-file-settings-on-readiness
patch/serverless-2025-01-07
patch/serverless-fix
patch/serverless-fix-outdated
patch/test2
periodic-test-failure-debug
perrinal-patch-1
philippkahr-patch-monitoringstats
pjhampton/update-endpoint-data-streams
plaid
plaid-null-safe
polish-java-ea-pipeline
port-repository-s3-to-newtestframework
ppf2-ConcurrentMergeScheduler-forcemerge
ppf2-aggregations-ccs-leak-7.15.0
ppf2-aws-bedrock
ppf2-clarify-echo-command-usage
ppf2-clarify-meta
ppf2-improve-slack-setup
ppf2-improve-slack-setup-1
ppf2-parameter-date-math
ppf2-patch-1
ppf2-patch-2
ppf2-patch-3
ppf2-transport-profile-settings
pr-124758
pr-benchmark-test-2
pr-linking-test2
prdoyle-patch-1
predogma-patch-1
prmt-actions
processor_set_docs_addition
prodfiler
promote_es_serverless
reakaleek-patch-1
record-anomaly-detection-messages
redcinelli-patch-1
refactorMlServerlessAutoscaling
reindex_v2
release-notes-7-17-20
release-notes-8-17-0
release-notes-fp-8-15-3-main
release-notes-fp-8-15-4-main
release-notes-fp-8-15-5-main
release-notes-fp-8-16-0-main
release-notes-fp-8-16-1-main
release-notes-fp-8-16-3-main
release-notes-fp-8-16-4-main
release-notes-fp-8-17-0-main
release-notes-fp-8-17-1-main
release-notes-fp-8-17-2-main
release-notes-fp-8-18-0-main
release-notes-fp-8-18-7-8-19
remote-cluster-security-extension
remove-apm-user
remove-static-buildparams
renovate/8.16-wolfi-versioned
renovate/8.x-wolfi-(versioned)
renovate/9.0-docker.elastic.co-elasticsearch-elasticsearch-9.x
renovate/9.0-wolfi-versioned
renovate/main-docker.elastic.co-elasticsearch-elasticsearch-9.x
replace-non-whitespaces
resource-manager-with-memory
revert-100369-fix-idp-fixture-issue
revert-107107-iter-count-keystore-wrapper
revert-112112-revert-112028-apm-data-fix-dlm
revert-114805-bp114636
revert-116061-delay-instantiating-next-phase
revert-116339-index_stats_enhancement
revert-116582
revert-117933-enhancement/change-logging-field
revert-120951-revert-118991-elastic-connectors-system-index-descriptors
revert-121119-revert-120168-enhancement/es-9724-reduce-data-loss-system-indices
revert-121120-revert-120566-enhancement/es-9724-reduce-data-loss-system-indices-8x
revert-128504-SEARCH-921-add-l-2-norm-normalization-support-to-linear-retriever
revert-134454-disposer-entitlements
revert-67890-mute-67889-master
revert-72083-refactor-shard-level-snapshot-api
revert-77491-Leaf-Lin-patch-2
revert-87887-master
revert-90122-support-ignore_malformed-in-boolean-field
revert-90950-fix/no_subobjects_fieldname_validation
revert-91519-tsds-remove-preview
revert-92363-mute-find-structure-doctest
revert-93076-transportversion-versionedwriteable
revert-97821-ent-search/add-bwc-tests
revert-98631-testfix/testSlicingBehaviourForParallelCollection
rework-exclusive-metricbeatsrepo
richiejarvis-patch-2
robb3rt-patch-1
robin13-patch-1
rolling-upgrade-cc-compatibility
rose
rseldner-patch-1
rseldner-patch-1-1
rseldner-patch-1-2
rseldner-patch-2
rseldner-patch-3
rseldner-patch-4
rseldner-patch-5
run-as-admin
runtime-fields-enrich
runtime/runtime-to-index
rwaight-patch-2
s2d1-index-expression-rewriter
samx/feature/multi-project/geoip
seanstory/chat-index-templates
seanstory/increase-mapping-field-meta-char-limit
serverless-qa-deploy
serverless-submodule-lgc
servers
service_account_test_artifact
set-user-profile-apis-to-master
share-path-ignore-unkown-shard
sherry-ger-search-app-api-elser-v2
sherry-ger-search-template-mustache-list
sherry-ger-search-template-mustache-list-main
sieve-cache
sigterm-cleanup
simplify-distribution-download-configurations
sm-mappings-moved-codeowners
smaller-instances
smh
space-time-aug-2025/atomic-index-rename
spacetime_improve_balancer
stateless-debug-logging
stateless-upgrade-testing
stefnestor-patch-1
stefnestor-patch-2
support-buildkite-in-build-scans
support-rerun-failed-tests-only
synonyms_management_api
szabosteve/eis-def-semtex
table-alignment
tailorzed-patch-1
tailorzed-patch-2
tailorzed-patch-3
tanja-milicic-patch-1
tanja-milicic-patch-2
tarekziade/tikachanges
task-tracking-scaling-executors
teamcity
terms_aggs_merge_reduce
test-branch-colings86
test-cluster-setup-fix-debug
test-distribution
test-ecs-failure-notification
test-fixture-with-docker-compose-v2
test-teamcity
test_branch
testing-linked-prs
text-mapping-null-bug
thumbnail-processor
toby-sutor-patch-1
toby-sutor-patch-2
tracing/prevent_context_propagation
track-internal-service-metrics-by-primaryterm-generation
tsdb-hash-once
tsds-docs-fix
turnUpTheChill-named-nested
unmute-testHistoryIsWrittenWithSuccess
unset-available-processors-for-tests
update-discovery-node-constructor
update-es-upstream
update-event-type
update-krb5kdc-fixture-ubuntu-base
update-pinned-docs-8.19
update-stack-monitoring
updatecli_main_9bc32f73c7425e5d7d6a3e394780b3da48a426b42465b81f2ee642f0d3fe10e3
updatecli_main_ironbank/template
updatecli_main_ironbank_template
use-add-primary-term-generation-listener
use-ubuntu24-java-periodic
weighted-token-utils
woodywalton-patch-1
xcontent/numeric_copy
yomduf-patch-1
v8.19.6
v9.1.6
v9.2.0
v8.19.5
v9.0.8
v8.18.8
v9.1.5
v9.1.4
v8.19.4
v9.0.7
v8.18.7
v8.19.3
v8.18.6
v9.1.3
v9.0.6
v9.1.2
v8.19.2
v9.0.5
v8.17.10
v8.18.5
v8.19.1
v9.1.1
v9.1.0
v8.19.0
v9.0.4
v8.18.4
v8.17.9
v8.18.3
v9.0.3
v7.17.29
v8.17.8
v9.0.2
v8.18.2
v8.17.7
v8.18.1
v9.0.1
v8.17.6
v8.18.0
v8.17.5
v9.0.0
v8.17.4
v9.0.0-rc1
v8.16.6
v8.17.3
v8.16.5
v7.17.28
v9.0.0-beta1
v8.16.4
v8.17.2
v8.17.1
v8.16.3
v7.17.27
v8.16.2
v8.17.0
v7.17.26
v8.15.5
v8.16.1
v8.16.0
v8.15.4
v7.17.25
v8.15.3
v8.15.2
v7.17.24
v8.15.1
v8.15.0
v7.17.23
v8.14.3
v8.14.2
v7.17.22
v8.14.1
v8.14.0
v8.13.4
v8.13.3
v7.17.21
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v8.13.2
v8.13.1
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v7.17.19
v8.12.2
v8.12.1
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v7.17.17
v8.12.0
v8.11.4
v8.11.3
v7.17.16
v8.11.2
v7.17.15
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v6.2.4
v5.6.9
v6.1.4
v6.2.3
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v6.0.0-rc2
v5.6.3
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v5.6.1
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v5.6.0
v6.0.0-beta2
v5.5.2
v6.0.0-beta1
v5.5.1
v2.4.6
v5.5.0
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acos.md 628 B
ACOS [esql-acos]
Syntax
:::{image} ../../../../../images/acos.svg :alt: Embedded :class: text-center :::
Parameters
number
: Number between -1 and 1. If null, the function returns null.
Description
Returns the arccosine of n as an angle, expressed in radians.
Supported types
| number | result |
|---|---|
| double | double |
| integer | double |
| long | double |
| unsigned_long | double |
Example
ROW a=.9
| EVAL acos=ACOS(a)
| a:double | acos:double |
|---|---|
| .9 | 0.45102681179626236 |