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  1. en.wikipedia.org › wiki › 19661966 - Wikipedia

    1966. 1966 ( MCMLXVI) was a common year starting on Saturday of the Gregorian calendar, the 1966th year of the Common Era (CE) and Anno Domini (AD) designations, the 966th year of the 2nd millennium, the 66th year of the 20th century, and the 7th year of the 1960s decade. Wikimedia Commons has media related to 1966.

  2. v. t. e. English is a West Germanic language that originated from Anglo-Frisian dialects brought to Britain in the mid 5th to 7th centuries AD by Anglo-Saxon migrants from what is now northwest Germany, southern Denmark and the Netherlands. The Anglo-Saxons settled in the British Isles from the mid-5th century and came to dominate the bulk of ...

  3. From today's featured article A 56-bell carillon A carillon is a pitched percussion instrument housed in a bell tower and played with a keyboard. Consisting of at least 23 cast bronze bells in fixed suspension and tuned in chromatic order, carillons are usually owned by churches, universities, or municipalities. The bells are struck with clappers connected to a keyboard of wooden batons played ...

  4. en.wikipedia.org › wiki › 1960s1960s - Wikipedia

    The 1960s (pronounced "nineteen-sixties", shortened to " the '60s " or " the Sixties ") was a decade of the Gregorian calendar that began on January 1, 1960, and ended on December 31, 1969. The "cultural decade" of the 1960s is more loosely defined than the actual decade.

    • 海龟绘图
    • 程式实例
    • 多代理建模语言
    • Logo直譯器列表
    • 外部链接

    海龟绘图使得Logo用户可以通过简单的编程创作出丰富多彩的视觉效果或图案。假想一只带着画笔的海龟可以接受简单的命令,例如向前走100步,或者左转30度。通过对这只海龟发送命令,可以让它绘制出较为复杂的图形,例如正方形,三角形,圆等。 海龟的移动相对于它本身所在的位置。例如,命令"左90"意味着让海龟左转90度,学生可以站在海龟的角度来思考它将如何执行命令,这使得程序设计更加形象化,也更易于理解。

    设计Logo的初衷是为了向儿童教授计算机编程技能。它亦適合用作數學教學。初学者可以不需要任何程式设计的知识而直接向海龟发送命令。学习海龟作图将会让用户懂得一些关于几何学方面的知识。而一旦掌握了海龟作图的基础之后,引入程式设计的概念也变得更加容易。下面看一些例子:FD是前进LT是左转画一个正方形 由于输入的语句都是重复的,可以用重复语句简化为: 上面两段程序得到的结果相同,由于第一个程式几乎都是重复代码,因此我们用『REPEAT』让Logo重复同样的命令4次,同时还使用了命令的缩写。为了重复使用上述代码,我们可以用『TO...END』定义过程: 一旦定义了『CHAIR』过程,就可以直接使用调用它得到结果,为了使得这个过程更加通用化,我们传递一个边长参数: 从简单地发送绘图命令,到定义一个通用的绘制多边形的过程,用户不但掌握了程序设计上的一些基本思想(传递参数、重复等),而且对几何学上正多边形的理解也加深了。

    Logo的方言NetLogo、StarLogo进一步深化了Logo的海龟绘图概念,可以产生出成百上千个独立的海龟(被称为代理)来模拟诸如物理、生物或社会等复杂系统。建模者可以对众多海龟并行发送指令,来观察微观个体行为与个体之间相互影响产生的宏观样式之间的联系。

    Turtleacademy,又叫海龟学院,免费学编程。
    Berkeley Logo,又叫UCBLogo,用C寫成,可運行於多個平台。
    MSWLogo,有良好的GUI、詳盡的說明文件,運行於Windows,建基於Berkeley Logo,由Borland C++寫成。它支援三維圖像、聲響、鍵盤等多個功能。
    StarLogo
  5. en.wikipedia.org › wiki › AlabamaAlabama - Wikipedia

    Alabama is the 30th largest by area and the 24th-most populous of the U.S. states. With a total of 1,500 miles (2,400 km) of inland waterways, Alabama has among the most of any state. Alabama is nicknamed the Yellowhammer State, after the state bird. Alabama is also known as the "Heart of Dixie " and the "Cotton State".

  6. 84 minutes: Country: United Kingdom: Language: English: Budget: £286,000: Daleks' Invasion Earth 2150 A.D. is a 1966 British science fiction film directed by Gordon Flemyng and written by Milton Subotsky, and the second of two films based on the British science-fiction television series Doctor Who.

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