If an error occurs, i.e., the formula contains invalid data, a continue handler will be activated and a negative default value (-999999999999.99) will be returned.
如果发生错误,比如公式中包含无效的数据,就会激活后续处理程序,并返回一个负的默认值(- 999999999999.99)。
The formula forcalculating NPV can be written as remembering that C0, the cash flow at time 0(that is, today), will usually be a negative number.
我们将计算净现值的公式计作C0,在时点0(就是指今天)的现金流通常是一个负数。
Only one formula exists alternating between positive and negative, acceptance and refusal, giving and taking. That formula is "Do Not Exceed".
只有一个公式可以确定地说是徘徊于肯定与否定,接受与拒绝,给予与索取之间的,这个公式叫“不超越”。
We also know how to figure out the energy of this orbital, and we know how to figure out the energy using this formula here, which was the binding energy, -Rh which is negative r h, we can plug it in because n equals 1, so over 1 squared, and the actual energy is here.
我们知道如何算出,这个轨道的能级,而且我们知道如何,用这个公式,算出能量,也即是结合能,等于,我们把n等于1代进来,所以除以1的平方,这就是能量。
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