"If we don't ask about sleep and try to improve sleep patterns in kids' struggling academically, then we aren't doing our job," F said.
“如果我们不询问孩子的睡眠情况，不努力改善孩子在刻苦学习时的睡眠模式，那么我们就没有做好自己的工作。”F说道。
And that is indeed going to be the curl of F. in practice, if you have to compute the curl of a vector field, you know, don't try to remember this formula.
这就是F的旋度，在实际应用中，如果你必须计算一个向量场的旋度，不要尝试记忆这个公式。
If you are ambitious, try this alternative procedure: Note that f'(x)involves the Heaviside stepfunction.
如果你有雄心的话，可以用另外步骤试之：注意f’（X）包含亥维塞阶梯函数。
If you are ambitious, try this alternative procedure: Note that f'(x)involves the Heaviside stepfunction.
如果你有雄心的话，可以用另外步骤试之：注意f’（X）包含亥维塞阶梯函数。
应用推荐