second
... right-hand :右导数 second :二阶导数 as the slope of a tangent :导数看成切线之斜率 ...
second order derivative
... 二阶导数 second derivative 二阶导数 second order derivative (二次方程)两个不同的根 separate roots ...
arccos
在,且 ′(t ) ≠ 0 ,则 1 1 x 2 (arcsin x )′ = d arcsin x = dx dy ψ ′(t ) = dx ′(t ) ( ′(t ) ≠ 0) 二阶导数 (arccos x )′ = 1 1 x2 d arccos x = 1 1 x2 dx (arctan x )′ = [ln(x + ( 1 1+ x2 (arc cot x )′ = 1 2 1+ x x +a 2 2 d arctan x = ...
二阶导数是一阶导数的导数,从原理上,它表示一阶导数的变化率;从图形上看,它反映的是函数图像的凹凸性。