Applet: a given number of decimal conversion become binary.

说明：小程序：将给定的十进制数转换成为二进制数。

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Rounding a number to a particular (non-zero) number of decimal places.

将数字四舍五入到某个小数位数(不能是零)。

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GetPrecision to determine the number of decimal digits a parameter can hold.

getPrecision，用于确定参数可以保存的小数位数。

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Seventy-nine. In fact, if you add up each of these numbers, 9 you should get the decimal number 79 79 from this binary number here.

9，事实上，如果你把这些数字累加，你应该能从这些二进制中9,得到十进制数。

哈佛公开课 - 计算机科学课程节选

So unlike an int, this is the type of number that can have numbers after a decimal place.

所以，不同于int，这个类型的数字,可以有小数位。

哈佛公开课 - 计算机科学课程节选

Or at least flat to one decimal point, which is as many as the chancellor has previously had the temerity to mention. (He might, just, be able to say it has fallen as a share of GDP - but that, too, would depend on the number of decimal points, at which point things start to get a bit silly).

BBC: Borrowing: is it up or is it down?

You get the the itty-bitty number that looks like 0.000000001 but with tens of thousands of zeroes between the decimal and the 1.

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