Issue 2653: string to float to int (original) (raw)
Issue2653
Created on 2008-04-18 07:17 by wr, last changed 2022-04-11 14:56 by admin. This issue is now closed.
| Messages (3) | ||
|---|---|---|
| msg65602 - (view) | Author: wr (wr) | Date: 2008-04-18 07:17 |
| IDLE 1.2.1 >>> print int(float('1.005')*1000) 1004 | ||
| msg65604 - (view) | Author: Amaury Forgeot d'Arc (amaury.forgeotdarc) *  |
Date: 2008-04-18 07:34 |
| Yes, and >>> 1.005 * 1000 1004.9999999999999 Please read http://www.python.org/doc/faq/general/#why-are-floating-point-calculations-so-inaccurate To perform exact base-10 calculation, you may use the Decimal module. Or use round() instead of the int() truncation. | ||
| msg65605 - (view) | Author: Raymond Hettinger (rhettinger) * |
Date: 2008-04-18 08:12 |
| >>> int('%.0f' % (float('1.005')*1000)) 1005 >>> int(Decimal('1.005')*1000) 1005 |
| History | |||
|---|---|---|---|
| Date | User | Action | Args |
| 2022-04-11 14:56:33 | admin | set | github: 46905 |
| 2008-04-18 08:12:26 | rhettinger | set | nosy: + rhettingermessages: + |
| 2008-04-18 07:34:57 | amaury.forgeotdarc | set | status: open -> closedresolution: not a bugmessages: + nosy: + amaury.forgeotdarc |
| 2008-04-18 07:17:05 | wr | create |