Function sin

maths/sin.py:17–60

Implement sin function. >>> sin(0.0) 0.0 >>> sin(90.0) 1.0 >>> sin(180.0) 0.0 >>> sin(270.0) -1.0 >>> sin(0.68) 0.0118679603 >>> sin(1.97) 0.0343762121 >>> sin(64.0) 0.8987940463 >>> sin(9999.0) -0.9876883406 >>> sin(-689.0)

(
    angle_in_degrees: float, accuracy: int = 18, rounded_values_count: int = 10
)

def sin(
    angle_in_degrees: float, accuracy: int = 18, rounded_values_count: int = 10
) -> float:
    """
    Implement sin function.

    >>> sin(0.0)
    0.0
    >>> sin(90.0)
    1.0
    >>> sin(180.0)
    0.0
    >>> sin(270.0)
    -1.0
    >>> sin(0.68)
    0.0118679603
    >>> sin(1.97)
    0.0343762121
    >>> sin(64.0)
    0.8987940463
    >>> sin(9999.0)
    -0.9876883406
    >>> sin(-689.0)
    0.5150380749
    >>> sin(89.7)
    0.9999862922
    """
    # Simplify the angle to be between 360 and -360 degrees.
    angle_in_degrees = angle_in_degrees - ((angle_in_degrees // 360.0) * 360.0)

    # Converting from degrees to radians
    angle_in_radians = radians(angle_in_degrees)

    result = angle_in_radians
    a = 3
    b = -1

    for _ in range(accuracy):
        result += (b * (angle_in_radians**a)) / factorial(a)

        b = -b  # One positive term and the next will be negative and so on...
        a += 2  # Increased by 2 for every term.

    return round(result, rounded_values_count)


if __name__ == "__main__":