Selecta of Mathematical Papers : 無料・フリー素材/写真
Selecta of Mathematical Papers / brewbooks
| ライセンス | クリエイティブ・コモンズ 表示-継承 2.1 |
|---|---|
| 説明 | Mathematics is the core discipline of the National Security Agency. Algebra, number theory, real and complex analysis, probability theory and statistics are used on a daily basis to solve challenging problems in information security and communications technology.i09_0214 190 |
| 撮影日 | 2009-02-13 10:33:49 |
| 撮影者 | brewbooks , near Seattle, USA |
| タグ | |
| 撮影地 | Annapolis Junction, Maryland, United States 地図 |
| カメラ | Canon PowerShot SD850 IS , Canon |
| 露出 | 0.017 sec (1/60) |
| 開放F値 | f/2.8 |
| 焦点距離 | 11520 dpi |