总理编号螺旋(即乌拉姆螺旋)的构造如下:考虑一个矩形网格。我们从中心点开始,以螺旋方式(逆时针)排列正整数。然后标记底数。对角线上的底数有发生的趋势,无论斜线离螺旋线有多远。 这是软件是探索主要数字螺旋。 它还 (a) 允许以色数以各种方式着色,(b) 显示随机排列以与原数进行比较,(c) 显示正数和三角形数字位于螺旋上。
版本历史记录
- 版本 9.00 发布于 2016-08-07
- 版本 7.57 发布于 2007-04-04
轻微改进。
软件信息
- 软件分类: 教育 > 数学
- 发布者: Hermetic Systems
- 许可: 免费
- 价格: N/A
- 版本: 9.00
- 适用平台: windows
终端用户许可协议
'Hermetic Systems' is the business name of Peter Meyer, [email protected], the developer of this software, and the owner and maintainer of the Hermetic Systems website at hermetic.ch. The 'Prime NumberSpiral' software ("the Software") consists of the executable file and the other files installed by the installation program pns900_setup.exe obtainable from the Hermetic Systems website. All intellectual property rights related to the Software are owned by Hermetic Systems. You may not rent or lease the Software. You may not modify, translate, reverse engineer, decompile or disassemble the Software or any part thereof or otherwise attempt to derive source code or create derivative works therefrom. You may not remove, alter or destroy any proprietary, trademark or copyright markings or notices contained within the Software. You may not sell or offer for sale any derivative work. Any rights not explicitly granted by Hermetic Systems are reserved. Installation of the Software constitutes an agreement that the Software is provided "as is", without any warranties or guarantees. Hermetic Systems makes every effort to ensure that the software is error-free and performs as stated in the online user manual, but does not guarantee this. You assume responsibility for selecting the Software and using it for your intended purposes. In no event shall Hermetic Systems, its resellers or distributors of the Software be liable for any any damages whatsoever arising out of use or inability to use the Software, even if advised of the possibility of such damages.