Elemental Intrinsic Function (Generic): Produces the arccosine of x.
result = ACOS (x)
x |
(Input) Must be of type real. The | x | must be less than or equal to 1.
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結果
The result type and kind is the same as x and is expressed in radians. The value lies in the range 0 to pi.
Specific Name
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Argument Type
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Result Type
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ACOS 1
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REAL(4)
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REAL(4)
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DACOS 1
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REAL(8)
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REAL(8)
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QACOS2
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REAL(16)
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REAL(16)
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1The setting of compiler options specifying real size can affect ACOS and DACOS.
2Or QARCOS.
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例
ACOS (0.68032123) has the value .8225955.