# Extracting data vectors in constraint from sum notation in JuMP

**URL:** <https://discourse.julialang.org/t/extracting-data-vectors-in-constraint-from-sum-notation-in-jump/96448>\
**Category:** Optimization (Mathematical)\
**Tags:** jump\
**Created:** [March 22, 2023, 2:44pm UTC](https://discourse.julialang.org/t/extracting-data-vectors-in-constraint-from-sum-notation-in-jump/96448 "2023-03-22T14:44:00Z")\
**Posts on this page:** 1\
**Showing post:** 4

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**Author:** ![odow](https://sea2.discourse-cdn.com/julialang/user_avatar/discourse.julialang.org/odow/32/28685_2.png) [@odow](https://discourse.julialang.org/u/odow)\
**Post date:** [March 22, 2023, 9:13pm UTC](https://discourse.julialang.org/t/extracting-data-vectors-in-constraint-from-sum-notation-in-jump/96448/4 "2023-03-22T21:13:46Z")

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You can get the matrix following your PDHG question: [Connecting a simple first-order solver to solve standard form linear program to JuMP](https://discourse.julialang.org/t/connecting-a-simple-first-order-solver-to-solve-standard-form-linear-program-to-jump/95694)

You can use `x = all_variables(model)`.

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