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opencollab/arpack-ng

Collection of Fortran77 subroutines designed to solve large scale eigenvalue problems.

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Fortran
358
137
55 contributors
Custom license
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How fast opencollab/arpack-ng is gaining stars, and where it lands on Trendshift and GitHub Trending

Activity and trending

Stars, forks and merged pull requests each day or month, lined up with the repository's rank on Trendshift Trending

Aug 20 – Oct 19, 2026

Stars +5 in 61 days

01
1

Forks +2 in 61 days

01
1

Merged PRs 11 in 61 days

012
2

Trendshift Trendingwhere the repository ranked each day it made the top 25

Top 25 in Fortran

7218124132522
Aug 20Aug 28Sep 5Sep 13Sep 21Sep 29Oct 7Oct 15
The left and right arrow keys step from day to day; Home and End go to the first and the last

Stars, forks, merged pull requests and Trendshift Trending rank, by day
DayStars gainedForks gainedMerged PRsFortran
Thu, Aug 20, 2026+1+00#7
Fri, Aug 21, 2026+0+00Not trending
Sat, Aug 22, 2026+1+00#2
Sun, Aug 23, 2026+0+00Not trending
Mon, Aug 24, 2026+0+01Not trending
Tue, Aug 25, 2026+0+00Not trending
Wed, Aug 26, 2026+0+10#18
Thu, Aug 27, 2026+0+00Not trending
Fri, Aug 28, 2026+0+00Not trending
Sat, Aug 29, 2026+1+00#1
Sun, Aug 30, 2026+0+00Not trending
Mon, Aug 31, 2026+0+00Not trending
Tue, Sep 1, 2026+0+00Not trending
Wed, Sep 2, 2026+0+00Not trending
Thu, Sep 3, 2026+0+00Not trending
Fri, Sep 4, 2026+0+00Not trending
Sat, Sep 5, 2026+0+01#24
Sun, Sep 6, 2026+0+00Not trending
Mon, Sep 7, 2026+0+00Not trending
Tue, Sep 8, 2026+0+00Not trending
Wed, Sep 9, 2026+0+00Not trending
Thu, Sep 10, 2026+0+00Not trending
Fri, Sep 11, 2026+0+00Not trending
Sat, Sep 12, 2026+0+00Not trending
Sun, Sep 13, 2026+0+00Not trending
Mon, Sep 14, 2026+0+00Not trending
Tue, Sep 15, 2026+0+00Not trending
Wed, Sep 16, 2026+0+00Not trending
Thu, Sep 17, 2026+1+00#13
Fri, Sep 18, 2026+0+00Not trending
Sat, Sep 19, 2026+0+00Not trending
Sun, Sep 20, 2026+0+00Not trending
Mon, Sep 21, 2026+0+00Not trending
Tue, Sep 22, 2026+0+01Not trending
Wed, Sep 23, 2026+0+00Not trending
Thu, Sep 24, 2026+0+00Not trending
Fri, Sep 25, 2026+0+00Not trending
Sat, Sep 26, 2026+0+00Not trending
Sun, Sep 27, 2026+0+00#25
Mon, Sep 28, 2026+0+00Not trending
Tue, Sep 29, 2026+0+00Not trending
Wed, Sep 30, 2026+0+00Not trending
Thu, Oct 1, 2026+0+00Not trending
Fri, Oct 2, 2026+0+01Not trending
Sat, Oct 3, 2026+0+00Not trending
Sun, Oct 4, 2026+0+01Not trending
Mon, Oct 5, 2026+0+00Not trending
Tue, Oct 6, 2026+0+00Not trending
Wed, Oct 7, 2026+0+01Not trending
Thu, Oct 8, 2026+0+00Not trending
Fri, Oct 9, 2026+0+00Not trending
Sat, Oct 10, 2026+0+00Not trending
Sun, Oct 11, 2026+0+00Not trending
Mon, Oct 12, 2026+0+00Not trending
Tue, Oct 13, 2026+0+11#22
Wed, Oct 14, 2026+0+02Not trending
Thu, Oct 15, 2026+0+00Not trending
Fri, Oct 16, 2026+0+00Not trending
Sat, Oct 17, 2026+0+01Not trending
Sun, Oct 18, 2026+1+00Not trending
Mon, Oct 19, 2026+0+01Not trending
Total+5+211
  • 1#1 on the list
  • 7Rank that day
  • Not trending

    • Achievements

    Trendshift snapshots GitHub's daily Trending list and runs its own trending list

    Trendshift Trending

    opencollab/arpack-ng has trended on Trendshift's daily, weekly and monthly list

    Daily

    First achieved on 29th, Aug 2026 for Fortran

    #1 Fortran Repository Of The Day

    Weekly

    First achieved in Week 34, 2026 for Fortran

    #3 Fortran Repository Of The Week

    Monthly

    First achieved in August 2026 for Fortran

    #17 Fortran Repository Of The Month

    First achieved on 29th, Aug 2026 for Fortran

    #1 Fortran Repository Of The Day

    First achieved in Week 34, 2026 for Fortran

    #3 Fortran Repository Of The Week

    First achieved in August 2026 for Fortran

    #17 Fortran Repository Of The Month

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