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Add zip() for vectorizing matrix lookups for paired indices - #3411

#3411

Merged

SteveBronder merged 5 commits into

stan-dev:developstan-dev/math:developfrom

stekien:feature/zip-funstekien/math:feature/zip-funCopy head branch name to clipboard

Sep 24, 2026

Conversation Commits5 (5)Checks Files changed

Merged

Add zip() for vectorizing matrix lookups for paired indices#3411
SteveBronder merged 5 commits into
stan-dev:developfrom
stekien:feature/zip-fun

[Jenkins] auto-formatting by clang-format version 10.0.0-4ubuntu1

a51b010

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Header checks on: pull_request 2

Windows

OpenCL

NoRange

Rtools & ARM64 CI on: pull_request 10

misc tests (windows-11-arm)

prim tests (windows-11-arm)

rev tests (windows-11-arm)

fwd tests (windows-11-arm)

non-fun mix tests (windows-11-arm)

misc tests (windows-latest)

prim tests (windows-latest)

rev tests (windows-latest)

fwd tests (windows-latest)

non-fun mix tests (windows-latest)

misc tests (ubuntu-24.04-arm)

prim tests (ubuntu-24.04-arm)

rev tests (ubuntu-24.04-arm)

fwd tests (ubuntu-24.04-arm)

non-fun mix tests (ubuntu-24.04-arm)

mix fun and prob tests 1 (windows-11-arm)

mix fun and prob tests 2 (windows-11-arm)

mix fun and prob tests 3 (windows-11-arm)

mix fun and prob tests 4 (windows-11-arm)

mix fun and prob tests 5 (windows-11-arm)

mix fun and prob tests 1 (windows-latest)

mix fun and prob tests 2 (windows-latest)

mix fun and prob tests 3 (windows-latest)

mix fun and prob tests 4 (windows-latest)

mix fun and prob tests 5 (windows-latest)

mix fun and prob tests 1 (ubuntu-24.04-arm)

mix fun and prob tests 2 (ubuntu-24.04-arm)

mix fun and prob tests 3 (ubuntu-24.04-arm)

mix fun and prob tests 4 (ubuntu-24.04-arm)

mix fun and prob tests 5 (ubuntu-24.04-arm)

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1 notice

"The ubuntu-latest label will migrate to Ubuntu 26 beginning October 19, 2026. For more information, see https://github.com/actions/runner-images/issues/14748"

NoRange

succeeded Sep 23, 2026 in 5m 52s

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