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  1. See Also ¶ asin () - Arc sine sinh () - Hyperbolic sine cos () - Cosine tan () - Tangent deg2rad () - Converts the number in degrees to the radian equivalent

  2. Definition and Usage The sin () function returns the sine of a number.

  3. Jun 22, 2023 · Trigonometry is an important part of mathematics and PHP's math functions provides us with some functions which are very useful for calculations involving trigonometry. The sin () function in PHP is used to find the sine value of a number.

  4. The sin () function in PHP returns the sine of a number. It accepts a numeric value in radians and returns the corresponding sine value as a floating-point number.

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  6. Examples Example #1 sin () example <?php // Precision depends on your precision directive

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  8. PHP Math Introduction The math functions can handle values within the range of integer and float types.