Opened 13 years ago

Closed 13 years ago

## #376 closed bug (fixed)

# Problem with coefficients of polynomials in large characteristic

Reported by: | Owned by: | somebody | |
---|---|---|---|

Priority: | minor | Milestone: | 3-1-4 and higher |

Component: | dontKnow | Version: | 3-1-3 |

Keywords: | large prime characteristic | Cc: |

### Description

When I run this code in Singular

ring r=0,(x,y,t),dp; poly p1 = 3842432640y5t3; ring s=536870909,(x,y,t),dp; poly p2 = 3842432640y5t3; poly p1 = fetch(r, p1); p1-p2;

I get the strange answer --24y5t3 (instead of 0)

If I use * I get the correct answer ring r=0,(x,y,t),dp; poly p1 = 3842432640*y5t3; ring s=536870909,(x,y,t),dp; poly p2 = 3842432640*y5t3; poly p1 = fetch(r, p1); p1-p2;

### Attachments (1)

### Change History (2)

### Changed 13 years ago by

### comment:1 Changed 13 years ago by

Resolution: | → fixed |
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Status: | new → closed |

integer overflow while reading the coefficient (it is larger than int). fixed with rev. 14402

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Singular session where the bug appears