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汉语拼音：yú qiē

见〖三角函数〗。

1. 直角三角形任意一锐角的邻边和对边的比，叫做该锐角的馀切。用ctg(角)表示。参见“ 三角函数 ”。

• The inverse function of that restricted cotangent function is called the arccotangent function.

  被限定的余切函数之反函数叫做反余切函数。

• A new cotangent theorem is deduced to solve the nonlinearity for bearing-only measurement.

  通过新提出的余切关系定理，解决了单站纯方位观测的非线性问题。

• The following example returns the cotangent of various angles.

  下面的示例返回多个角度的余切

• Hey baby, what's your tanx cosx?

  宝贝，你的正切和余切是什么？

• Contingent epiderivative of the value map in parametric vector optimization problem of abstract constraint

  抽象约束的参数向量优化问题中值映射的余切上图导数

• Contingent Epiderivative of the Value Map in Vector Optimization of Inequality Constraint

  不等式约束的向量优化中值映射的余切上图导数

• Contingent epidifferentiability of the value map in vector optimization

  向量优化中值映射的余切上图可微性

• The Fuzzy Numerical Tangent Function and Cotangent Function

  模糊数值正切函数与余切函数

• On the Series Expression of Number Theory Function of Cotangent

  关于余切数论函数的级数表示