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atan2

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

atan2 — Arc tangent of two variables

Açıklama

atan2(float $y, float $x): float

This function calculates the arc tangent of the two variables x and y. It is similar to calculating the arc tangent of y / x, except that the signs of both arguments are used to determine the quadrant of the result.

The function returns the result in radians, which is between -PI and PI (inclusive).

Bağımsız Değişkenler

y

Dividend parameter

x

Divisor parameter

Dönen Değerler

The arc tangent of y/x in radians.

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