He used a computer, but you can also calculate pi at home with some needles and a sheet of lined paper.

当然，贝拉德要求助于电脑，不过你也可以用最简单的办法在自家客厅计算圆周率，所用材料只是几根针和一张横格纸。

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From just these three simple examples, you can see that gnuplot understands PI and has a rich and natural vocabulary of mathematical functions.

从刚才这三个简单的例子，您可以看到gnuplot能够理解pi并具有丰富的自带数学函数词汇表。

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LEHRER: How were you able to recite from memory the first 22, 514 Numbers of Pi?

Lehrer：你是如何能背诵圆周率小数点后22514位数的？

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So let's have a clicker question here on how many total pi bonds do you expect to see in benzene?

让我们来做个课堂习题,你们觉得苯环里有一共多少个π键？

麻省理工公开课 - 化学原理课程节选

But, of course, what you saw in recitation, and hopefully, what you can now think very quickly by looking at this, is that this is not the only configuration of pi bonds that we could have in benzene.

当然，你们在习题课看到过，你们通过看这个可以很快的想到，这不是苯环里,唯一的π键构型。

麻省理工公开课 - 化学原理课程节选

These are the ones that are coming right out at you, so this is going to be on a second pi orbital.

它们朝向你们，所以这里有另一个π键。

麻省理工公开课 - 化学原理课程节选

If you're a computational engineer, there's no question about what you do with the Raspberry Pi: you make a supercomputer cluster.

ENGADGET: Supercomputer built from Raspberry Pi and Lego, managed by humans rather than Minifigs

These include the Raspberry Pi, which you all know very well, along with the Timesquare DIY Watch Kit and MintyBoost, the open-source hardware charger.

ENGADGET

Programming experience is not required "if you are smart and persistent, " but it will certainly be easier if you have some, according to the Pi website.

ENGADGET: Cambridge University helps new Raspberry Pi users break the crust with free guide, tutorials