加入下列的 IF 函數，以避免出現除以零的錯誤：IF(Amplitude__c >= 0, SQRT(Amplitude__c), null).
平方根範例
SQRT(25) 會傳回 25 的平方根,即 5。
震級範例
SQRT(Amplitude__c) 會傳回代表地震震級的自訂數字欄位平方根。
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