学生们正在学习如何使用根号。

The students are learning how to use the radical sign.

根号在代数中是一个重要的符号。

The radical sign is an important symbol in algebra.

这个方程需要用到根号来解。

This equation requires the use of the radical sign to solve.

数学中，根号用于表示平方根。

In mathematics, the radical sign is used to denote the square root.

你知道如何计算根号下的数字吗？

Do you know how to calculate the number under the radical sign?

因为工作的需要，要在单片机上实现开根号的操作。

Because the work needs to realize single-chip on the operation of open radical sign .

然后开根号得到7，再加7。

Then, square root to 7, and add 7 more.

像是根号2，还有圆周率π这些。

The square root of two and pi, for instance.

宝贝，我可以看看你的根号下面是什么吗？

Hey baby, can I see what’s under your radical?

他们起源于脱根号.

They arise because of the removal of radicals.