If I pick an angle of 60 degrees, these are some numbers like half and root 3 over 2.
要是我选择一个60度的角,这些数就会是二分之一和二分之根号三。
If you would have picked the minus, you would have found a different phase Angle, but you can't pick minus.
如果你要取负值,你会找到不同的,相角,但是你不能取负。
So we could pick any point on the structure including an Angle relative to the global coordinate system.
所以我们可以在结构上选取任何一个点,相对于全局坐标系存在角度。
If I pick an angle of 60 degrees, these are some numbers like half and root 3 over 2.
要是我选择一个 60°的角,上面的系数就会是二分之一和二分之根号三
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