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傳回數值的反雙曲線餘弦值。Number 必須大於或等於 1。反雙曲線餘弦是其雙曲線餘弦值為number,所以 ACOSH(COSH(number)) 等於 number

語法

ACOSH(number)

Number     係指大於或等於 1 的實數。

範例

公式

說明 (結果)

=ACOSH(1)

1 的反雙曲線餘弦值 (0)

=ACOSH(10)

10 的反雙曲線餘弦值 (2.993223)

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