View Issue Details
| ID | Project | Category | View Status | Date Submitted | Last Update |
|---|---|---|---|---|---|
| 0000630 | 1003.1(2008)/Issue 7 | System Interfaces | public | 2012-11-08 18:20 | 2019-06-10 08:55 |
| Reporter | tydeman | Assigned To | ajosey | ||
| Priority | normal | Severity | Editorial | Type | Error |
| Status | Closed | Resolution | Accepted As Marked | ||
| Name | Fred J. Tydeman | ||||
| Organization | Tydeman Consulting | ||||
| User Reference | |||||
| Section | cosh() | ||||
| Page Number | 696 | ||||
| Line Number | 23586 | ||||
| Interp Status | --- | ||||
| Final Accepted Text | 0000630:0001426 | ||||
| Summary | 0000630: Sentence is missing "for finite x" | ||||
| Description | The sentence: For IEEE Std 754-1985 double, 710.5 < |x| implies that cosh(x) has overflowed. is only true for finite x. cosh(infinity) is exactly infinity without any error. The same issue applies to: erfc(), exp(), exp2(), expm1() Aside: Should that sentence be added to sinh() since both cosh() and sinh() overflow at the same point? Should similar sentences be added to: lgamma(2.6e305) tgamma(171.7) | ||||
| Desired Action | Add "for finite x" for the five math functions with this error. Consider adding similar sentences to sinh(), lgamma(), and tgamma(). | ||||
| Tags | tc2-2008 | ||||
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Here are the proposed actions: On P696 L23586 delete: For IEEE Std 754-1985 double, 710.5 < |x| implies that cosh(x) has overflowed. On P767 L25598 delete: Note for IEEE Std 754-1985 double, 26.55 < x implies erfc(x) has underflowed. On P787 L26297 delete: Note that for IEEE Std 754-1985 double, 709.8 < x implies exp(x) has overflowed. The value x< −708.4 implies exp(x) has underflowed. On P789 L26366 delete: For IEEE Std 754-1985 double, 1024 <= x implies exp2(x) has overflowed. The value x< −1022 implies exp(x) has underflowed. On P791 L26426 delete: For IEEE Std 754-1985 double, 709.8 < x implies expm1(x) has overflowed. On P2106 L66639 delete: For IEEE Std 754-1985 double, overflow happens when 0 < x < 1/DBL_MAX, and 171.7 < x. |
| Date Modified | Username | Field | Change |
|---|---|---|---|
| 2012-11-08 18:20 | tydeman | New Issue | |
| 2012-11-08 18:20 | tydeman | Status | New => Under Review |
| 2012-11-08 18:20 | tydeman | Assigned To | => ajosey |
| 2012-11-08 18:20 | tydeman | Name | => Fred J. Tydeman |
| 2012-11-08 18:20 | tydeman | Organization | => Tydeman Consulting |
| 2012-11-08 18:20 | tydeman | Section | => cosh() |
| 2012-11-08 18:20 | tydeman | Page Number | => 701 |
| 2012-11-08 18:20 | tydeman | Line Number | => 23801 |
| 2012-12-05 16:42 | msbrown | Note Added: 0001426 | |
| 2012-12-05 16:44 | msbrown | Page Number | 701 => 696 |
| 2012-12-05 16:44 | msbrown | Line Number | 23801 => 23586 |
| 2012-12-05 16:44 | msbrown | Interp Status | => --- |
| 2012-12-05 16:44 | msbrown | Final Accepted Text | => 0000630:0001426 |
| 2012-12-05 16:44 | msbrown | Status | Under Review => Resolved |
| 2012-12-05 16:44 | msbrown | Resolution | Open => Accepted As Marked |
| 2012-12-06 09:43 | geoffclare | Status | Resolved => Under Review |
| 2012-12-06 09:43 | geoffclare | Resolution | Accepted As Marked => Reopened |
| 2012-12-12 16:34 | geoffclare | Note Edited: 0001426 | |
| 2012-12-12 16:35 | geoffclare | Status | Under Review => Resolved |
| 2012-12-12 16:35 | geoffclare | Resolution | Reopened => Accepted As Marked |
| 2012-12-12 16:35 | geoffclare | Tag Attached: tc2-2008 | |
| 2019-06-10 08:55 | agadmin | Status | Resolved => Closed |
