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Returns the angle whose cosine is the specified number.
Syntax
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float math.acos(float a) |
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Parameters
| Name | Data Type | Description |
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| a | Float | A number representing a cosine, where -1 ≤A≤ 1. |
Return Value
| Data Type | Description |
|---|---|
| Float | An angle, θ, measured in radians, such that 0 ≤ θ ≤ π -or- NaN ifA< -1 orA> 1. |