...偏导数是一类特殊的方向导数。 Derivative of a vector-valued function f can be defined as the limit wherever it exists finitely. As mentioned before, this gives us the rate of increase of the function f along the direction of the vector u. In the case of a single-valued function, this r...
...偏导数是一类特殊的方向导数。 Derivative of a vector-valued function f can be defined as the limit wherever it exists finitely. As mentioned before, this gives us the rate of increase of the function f along the direction of the vector u. In the case of a single-valued function, this r...
...ation command, I have the following question. How do I define a PowerShell function that requires elevation, as in activating a UAC prompt on my Windows 8.1 Pro, 64-bit system? For example, say I run the following function: With the following results: To be completely clear, if I run PowerShell as...
...? 答案 超级用户贡献者mtone为我们提供了答案: If a VBA function is called from several formulas or if your script generates or forces the recalculation of several formulas, then this should definitely make use of the multi-threaded calculation feature in Microsoft Excel. Respectiv...
圆柱体-定义 圆柱是几何学中发现的一种基本的圆锥形状,它的性质已经被人们认识了几千年。一般来说,圆柱被定义为与直线段保持恒定距离的一组点,其中直线段称为圆柱轴。 在更广泛的意义上,圆柱可以被定义为...
...关系式D=2r轻松计算半径。确定半径后,使用上述公式。 如何求球体的体积:示例 球体的半径是10厘米。球体的体积是多少? 半径是给定的。因此,球体的体积可以计算如下:, 如何求半球体的体积:例子 一个直径为5米的...
...。如果顶点从基部中心偏移,则圆锥体称为斜圆锥体。 如何求圆锥体的体积 对于底面半径为r,高度为h的圆锥体,其体积可通过以下公式得出:, 结果适用于斜锥和右锥。结果如下(在这种情况下,只考虑右锥体,斜锥体的...
什么是二次函数(a quadratic function)? 二次多项式函数称为二次函数。形式上,f(x)=ax2+bx+c是一个二次函数,其中a、b和c是实常数,a≠x的所有值均为0。二次函数的图形是抛物线。 如何求二次函数的对称轴 任何二次函数...
双曲线 The hyperbola is a conic section. The term hyperbola is referred to the two disconnected curves shown in the figure. 如果主轴与笛卡尔轴重合,双曲线的一般方程为: 这些双曲线围绕y轴对称,称为y轴双曲线。绕x轴对称的双曲线(或x轴双...
...中棱柱体的边的长度为l,h是三角形与边a的垂直高度。 如何求棱镜的表面积:示例 棱镜的横截面积为3厘米长的等边三角形。如果棱镜长10厘米,则求出棱镜的总面积。 找到基地的面积 底座为3cm等边三角形。因此,三角形...