It just throws the decimal point away and that's because, again, these are ints and the answer intuitively should be a floating point value, but I need to be more specific.

它直接把小数点后面的数值丢弃掉了，因为，凭直觉，那些整型数和结果应该是一个浮点数据，但是我需要一个更精确的数值。

youdao

Converts the value of the specified decimal number to an equivalent double-precision floating-point number.

将指定的单精度浮点数的值转换为等效的双精度浮点数。

youdao

Converts the value of the specified decimal number to an equivalent single-precision floating-point number.

将指定的双精度浮点数的值转换为等效的单精度浮点数。

youdao

It just throws the decimal point away and that's because, again, these are ints and the answer intuitively should be a floating point value, but I need to be more specific.

它直接把小数点后面的数值丢弃掉了，因为，凭直觉，那些整型数和结果应该是一个浮点数据,但是我需要一个更精确的数值。

哈佛公开课 - 计算机科学课程节选

There's no decimal point; there's no point zero; there's no floating point value, it's just a hardcoded integer.

这里没有小数点，这里没有;,这里没有浮点数值，它只是一个整型数字。

哈佛公开课 - 计算机科学课程节选

So a floating point value again is a number with a decimal point, so it depends.

一个浮点型数据就是一个,带小数点的数。

哈佛公开课 - 计算机科学课程节选