三角函数 [数] trigonometric function ; [数] circular function ; Trigonometric ; Trigonometry
反三角函数 inverse trigonometric functions ; inverse circular function ; antitrigonometric function ; inverse cosine function
三角函数表 trigonometric table ; table of trigonometric function
正三角函数 [数] direct trigonometric function
三角函数计算器 Advanced Trigonometry Calculator ; Trigonometric Calculator
执行三角函数 Trigonometric Function
三角函数计算机 trigonometric function computer
三角函数发生器 triangular function generator
三角函数系 trigonometric function system
数学和三角函数 Math & Trig
利用SBGB型基函数的对偶泛函，推导出SBGB三角曲面片到退化矩形曲面片的顶点转化公式。
This thesis also presents an explicit formula that converts a triangular SBGB patch of degree n to a degenerate rectangular SBGB patch of degree nxn by reparametrization and the SBGB dual bases.
利用光滑模和K -泛函给出了一类多元三角多项式算子同时逼近的正逆定理。
Using the modulus of smoothness and K-functional, direct and inverse theorems of simultaneous approximation for a kind of multivariate trigonometric polynomial operators are established.
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