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[Other] TimeOfSecond DL : 0: 把一个年、月、日、时、分、秒的时间转换为一个基于1970年1月1日0时0分0秒的秒数；或者把一个基于1970年1月1日0时0分0秒的秒数转换为一个年、月、日、时、分、秒的时间。本源码考虑了闰年因素的影响。在嵌入式开发中，当没有RTC时，这种转换非常有用，可以比较容易地维持一个系统时间。-put a year, month, day and hour, minute and second time for a change based on at 0:00 a.m. on January 1, 1970 0 0 seconds seconds; Or one based at 12:00 a.m. on January 1, 1970 0 0 seconds concurrently converted to a year, month, day and hour- and second time. Consider the source of the impact of a leap year. In embedded development, in the absence of the RTC, such a conversion is very useful, it is easier to maintain a system of time.
Date : 2025-12-27 Size : 252kb User : 小罗
[Other] ethernet_basics DL : 0: Ethernet has become the predominant method for connecting devices in home and office environments over the last decade. Originally developed in the 1970’s by XEROX, it has become an IEEE standard 802.3-Ethernet has become the predominant method for connecting devices in homeand office environments over the last decade. Originally developed in the 1970 sby XEROX, it has become an IEEE standard 802.3
Date : 2025-12-27 Size : 235kb User : charles
[Other] EasyKrig3.0 DL : 0: Usage: yi=akimai(x,y,xi) Given vectors x and y (of the same length) and the array xi at which to interpolate, fits piecewise cubic polynomials and returns the interpolated values yi at xi. Ref. : Hiroshi Akima, Journal of the ACM, Vol. 17, No. 4, October 1970, pages 589-602. Programmer: N. Shamsundar, University of Houston, 6/2002 Correction to lines 32-33, 9/2004, motivated by Gilford Ward, to make routine work correctly for linear data. Notes: Use only for precise data, as the fitted curve passes through the given points exactly. This routine is useful for plotting a pleasingly smooth curve through a few given points for purposes of plotting.-Usage: yi=akimai(x,y,xi) Given vectors x and y (of the same length) and the array xi at which to interpolate, fits piecewise cubic polynomials and returns the interpolated values yi at xi. Ref. : Hiroshi Akima, Journal of the ACM, Vol. 17, No. 4, October 1970, pages 589-602. Programmer: N. Shamsundar, University of Houston, 6/2002 Correction to lines 32-33, 9/2004, motivated by Gilford Ward, to make routine work correctly for linear data. Notes: Use only for precise data, as the fitted curve passes through the given points exactly. This routine is useful for plotting a pleasingly smooth curve through a few given points for purposes of plotting.
Date : 2025-12-27 Size : 495kb User : rz
[Other] time_t DL : 0: this source code convert the date and time to time_t the seconds pass 1970/01/01
Date : 2025-12-27 Size : 59kb User : Reza Mohammadi
[Other] Algorithm-Gossip DL : 0: 八皇后：说明西洋棋中的皇后可以直线前进，吃掉遇到的所有棋子，如果棋盘上有八个皇后问题，则这八个皇后如何相安无事的放置在棋盘上，1970年与1971年，E.W.Dijkstra经用这个问题来讲解程式设计之技巧。-Algorithm Gossip is a classic arithmetic program,which you should have a good look.
Date : 2025-12-27 Size : 2kb User : zhang
[Other] game-of-life DL : 0: 说明生命游戏（game of life）为1970年由英国数学家J. H. Conway所提出，某一细胞的邻居包括上、下、左、右、左上、左下、右上与右下相邻之细胞，游戏规则如下：孤单死亡：如果细胞的邻居小于一个，则该细胞在下一次状态将死亡。此为c语言实现的算法。-Algorithm Gossip is a classic arithmetic program,which you should have a good look.
Date : 2025-12-27 Size : 1kb User : zhang
[Other] UTC2Time DL : 0: UTC2Time例如把时间格式yyyy-mm-dd HH:mi:ss转换为1970年到现在的秒数-UTC2Time such as the time format yyyy-mm-dd HH: mi: ss converted in 1970 to the current number of seconds
Date : 2025-12-27 Size : 1.7mb User : lw
[Other] life DL : 0: 康威的生命游戏,也简称为生命，游戏是在1970年由英国数学家约翰·霍顿康威制定的-The Game of Life, also known simply as Life, is a cellular automaton devised by the British mathematician John Horton Conway in 1970
Date : 2025-12-27 Size : 2kb User : JIANG WEI
[Other] CalendarWidget-160418.tar DL : 0: 功能描述： 1、用QLabel拼凑的万年历代码，样式可自定义。 2、支持农历显示。支持计算农历在1970-2040年 3、支持24节气显示。 4、支持日程记录，采用sqllite数据记录日程。 5、显示固定节假日。 6、万年历支持任意一年。支持跳转设置。- 功能描述： 1、用QLabel拼凑的万年历代码，样式可自定义。 2、支持农历显示。支持计算农历在1970-2040年 3、支持24节气显示。 4、支持日程记录，采用sqllite数据记录日程。 5、显示固定节假日。 6、万年历支持任意一年。支持跳转设置。 Function description: 1, use QLabel patchwork calendar code, style can be customized. 2, support for the lunar calendar. Support the calculation of the Chinese lunar year in 1970-2040 3, support 24 solar terms display. 4, support the agenda, using sqllite data recording schedule. 5, show a fixed holiday. 6, support for any one year calendar. Support for jump settings.
Date : 2025-12-27 Size : 361kb User : xiaoni
[Other] date-calculator DL : 0: 可以进行1970~2050年日期的运算，有，判断日期是否有效，是星期几，判断两日期相差几天，判断某日期前后n天是什么日期的功能。-Operation can be carried out 1970 to 2050 the date has to determine whether the effective date, day of the week, the date of judgment two days apart, before and after judgment day is a date n What s the date.
Date : 2025-12-27 Size : 244kb User : rxr
[Other] SGP8_1.0 DL : 1: SGP是第一个轨道传播器。它是由希尔顿和库尔曼于1966年开发的，这要归功于Kozai在1959年所做的一项研究工作。它是为绕地球轨道运行的卫星制造的，其中包括轨道周期小于225分钟的卫星。该模型假定偏心率低，并且近地点的高度恒定。 SGP4由肯·克兰福德（Ken Cranford）于1970年开发。它是对之前的传播器的改进，目的是跟踪此时轨道上不断增长的卫星数量。它也用于近地卫星。 SGP8也用于近地卫星，几乎类似于SGP4传播器，但计算方法不同。但是，对于大气和重力效应，它遵循相同的模型。 SDP8是适用于深空效果的SGP8传播器。此外，SGP8和SDP8更好地管理了轨道衰减(SGP is the first orbital propagator. It was developed by Hilton and kurman in 1966, thanks to a study by Kozai in 1959. It is made for satellites orbiting the earth, including those with an orbital period of less than 225 minutes. The model assumes low eccentricity and constant perigee height. SDP4, developed by hujsak in 1979, is a SGP4 propagator for deep space objects. This includes satellites with orbital periods greater than 225 minutes. For a time period higher than this value, the orbit of the satellite will be interfered by the moon and the sun, as well as by some resonance effects in the 12 and 24-hour orbital periods. Sgp8 is also used in near earth satellites, almost similar to SGP4 propagator, but the calculation method is different. However, it follows the same model for atmospheric and gravitational effects. Sdp8 is a sgp8 propagator for deep space effects. In addition, sgp8 and sdp8 better manage orbital attenuation)
Date : 2025-12-27 Size : 1.64mb User : DLUhch