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Feature #1084

New function: PrevPrime

Added by Anna Maria Bigatti 8 months ago. Updated 3 months ago.

Status:
Closed
Priority:
Normal
Assignee:
Category:
CoCoA-5 function: new
Target version:
Start date:
29 Jun 2017
Due date:
% Done:

100%

Estimated time:
1.51 h
Spent time:

Description

We have NextPrime.
For modular methods it would be nice to have PrevPrime, so that we can start from the biggest meaningful prime and go down.


Related issues

Related to CoCoALib - Bug #1088: MinPolyQuot: runs out of primesClosed2017-07-05

History

#1 Updated by John Abbott 8 months ago

  • Status changed from New to In Progress
  • % Done changed from 0 to 10

In CoCoALib the function is already there; it is not exported to CoCoA-5, but perhaps should be?
It is also documented!

#2 Updated by Anna Maria Bigatti 8 months ago

  • Assignee set to John Abbott
  • Target version changed from CoCoALib-0.99999 to CoCoALib-0.99560
  • % Done changed from 10 to 70
  • Estimated time set to 1.51 h

Great, thanks!
I could swear I had looked for it, without finding it....

I have added it to cocoa-5.
checked-in

#3 Updated by Anna Maria Bigatti 8 months ago

  • Project changed from CoCoALib to CoCoA-5
  • Category changed from New Function to CoCoA-5 function: new
  • Status changed from In Progress to Feedback
  • Target version changed from CoCoALib-0.99560 to CoCoA-5.2.2

#4 Updated by Anna Maria Bigatti 8 months ago

  • Related to Bug #1088: MinPolyQuot: runs out of primes added

#5 Updated by John Abbott 3 months ago

  • Status changed from Feedback to Closed
  • % Done changed from 70 to 100

Completed CoCoA-5 man page for PrevPrime.

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