divide by zero encountered in double_scalars clock_angle = math.degrees(math.atan(By[j] / Bz[j]))

这个错误是因为在计算 `math.atan(By[j] / Bz[j])` 时，Bz[j] 的值为0，导致了除以0的错误。在这种情况下，可以考虑在代码中添加一个条件判断来避免这种情况的发生，例如：

if Bz[j] == 0:
    clock_angle = 90.0
else:
    clock_angle = math.degrees(math.atan(By[j] / Bz[j]))

这样，在 Bz[j] 等于0的时候，clock_angle 的值将被设置为90.0。你可以根据实际情况来调整这个值。

相关问题

invalid value encountered in double_scalars

This error message typically occurs in Python when you divide by zero or perform an invalid mathematical operation that results in a division by zero.

For example, the following code would result in this error:

x = 0
y = 5/x

To fix this error, you should check your code for any instances where you are dividing by zero or performing any invalid mathematical operations, and make sure to handle those cases appropriately.