Opened 5 years ago

Closed 5 years ago

#22884 closed defect (fixed)

Incorrectly computed precision with leading zeros and decimal point

Reported by: robertwb Owned by:
Priority: major Milestone: sage-8.0
Component: user interface Keywords:
Cc: Merged in:
Authors: Robert Bradshaw Reviewers: Travis Scrimshaw
Report Upstream: N/A Work issues:
Branch: 97f799f (Commits, GitHub, GitLab) Commit: 97f799fc2729119e013e78ee807879c857e8f01e
Dependencies: Stopgaps:

Status badges

Description 

sage: r =     .123456789123456789
sage: r.parent()
Real Field with 57 bits of precision
sage: r =    0.123456789123456789
sage: r.parent()
Real Field with 60 bits of precision
sage: r =   00.123456789123456789
sage: r.parent()
Real Field with 57 bits of precision
sage: r =00000.123456789123456789
sage: r.parent()
Real Field with 57 bits of precision
sage: s =    ".123456789123456789"
sage: RealNumber(s).parent()
Real Field with 57 bits of precision
sage: s =   "0.123456789123456789"
sage: RealNumber(s).parent()
Real Field with 60 bits of precision
sage: s =  "00.123456789123456789"
sage: RealNumber(s).parent()
Real Field with 57 bits of precision

See ​https://groups.google.com/forum/#!topic/sage-devel/KhaL5hX08uM

Change History (5)

comment:1 Changed 5 years ago by robertwb

  • Status changed from new to needs_review

comment:2 Changed 5 years ago by robertwb

  • Authors set to Robert Bradshaw

comment:3 Changed 5 years ago by robertwb

  • Branch set to u/robertwb/real-prec
  • Commit set to 97f799fc2729119e013e78ee807879c857e8f01e

New commits:

​97f799fHandle leading zeros correctly in significant figure computation.

comment:4 Changed 5 years ago by tscrim

  • Reviewers set to Travis Scrimshaw
  • Status changed from needs_review to positive_review

LGTM.

comment:5 Changed 5 years ago by vbraun

  • Branch changed from u/robertwb/real-prec to 97f799fc2729119e013e78ee807879c857e8f01e
  • Resolution set to fixed
  • Status changed from positive_review to closed
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