n.余割

In the unit circle, the cosecant of an angle is the reciprocal of the sine of that angle.
在单位圆中，角度的余割是该角度正弦的倒数。
The cosecant function is undefined for angles where the sine equals zero (e.g., at 0 and 180 degrees).
余割函数在正弦等于零的角度处未定义（例如，在0度和180度）。
To calculate the cosecant of an angle in radians using Python, you can use the `math.cosecant()` function.
要使用Python计算弧度制角度的余割，可以使用`math.cosecant()`函数。
The cosecant of an obtuse angle in a right triangle is always less than one.
直角三角形中钝角的余割总是小于一。
The cosecant of any angle is equal to the hypotenuse divided by the opposite side in a right-angled triangle.
任何角度的余割等于直角三角形中斜边除以对边。
The cosecant of an angle in a hyperbolic triangle can be calculated using the formula: `cosec(θ) = 1 / sin(θ)`.
双曲三角形中角度的余割可以通过公式计算：`cosec(θ) = 1 / sin(θ)`。
In trigonometry, the cosecant of an angle is the ratio of the length of the hypotenuse to the length of the opposite side.
在三角学中，角度的余割是斜边长度与对边长度之比。
The cosecant function is periodic with a period of 2π in the complex plane.
余割函数在复平面上具有周期为2π的周期性。
To graph the cosecant function, plot points where the sine function crosses the x-axis and reflect those points over the line y=1.
绘制余割函数的图形，将正弦函数穿过x轴的点绘图，并将这些点关于直线y=1反射。
The cosecant of an angle in a spherical triangle can be determined using spherical trigonometry formulas.
球面三角形中角度的余割可通过球面三角学公式确定。