stan-dev / stan-dev/stan

ODE solvers unnecessarily disallow `initial_time == times[1]`

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Dominant language
C++
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Merged PRs (30d)
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Description

As per the title. There's really no reason to disallow it, and it just makes usage for users more annoying - not even harder.

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Research direction

The issue identifies ODE solvers and the rejected initial_time == times[1] condition, but names no files or tests. Start by locating the validation for this condition, then verify that equality is accepted and add or update coverage for the case.

Written by the indexing model from the issue text.

Assessment

Tech stack
cpp
Domain
backend
Issue type
Bug
Difficulty
3/5
Estimated time
1-2 days
Activity status
Stale
Clarity
Needs clarification
Newbie friendliness
35/100

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