The bar directions are conveniently specified by direction cosines . 桿的方向通常用方向余弦來表示。
The cosine rather than the sine is customarily used in this case . 在這種情況下,習慣上用余弦函數而不是正弦函數。
We derive the addition formulas for sine and cosine from the arithmetic of complex numbers . 用復數算術推導了正弦,余弦的加法公式。
The expression for g can be rewritten in terms of trigonometric sines and cosines . 關于g的表達式可以重寫成三角函數的正弦和余弦形式。
Let's now examine the simplest wave form where the profile is a sine or cosine curve . 現在讓我們來考察最簡單的波形,它的剖面圖是正弦或余弦曲線。
The nine elements of the matrix are products of cosines of angles between the direction of a streamline at a point and the coordinate axis . 這矩陣的9個元素系一點的流線方向和座標軸之間夾角余弦的乘積。
Speech enhancement based on discrete cosine transform 基于離散余弦變換的語音增強
Finite point matrix method based on cosine spline 基于余弦樣條函數的有限點陣法
Returns the hyperbolic cosine of the specified angle 返回指定角度的雙曲余弦值。
Value containing the cosine of the specified angle 值,此值包含指定角度的余弦。