asin

(PHP 4, PHP 5, PHP 7, PHP 8)

asinArc sine

Açıklama

asin ( float $num ) : float

Returns the arc sine of num in radians. asin() is the inverse function of sin(), which means that a==sin(asin(a)) for every value of a that is within asin()'s range.

Değiştirgeler

num

The argument to process

Dönen Değerler

The arc sine of num in radians

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