mathematica怎么把一个曲线和它的动点图画在一个坐标系?答:Animate[Show[f1,Graphics[{Red, Point[{Cos[2 t] + 6 Cos[t], -Sin[2 t] + 6 Sin[t]}]},Axes -> True, AxesOrigin -> {0, 0}, PlotRange -> {-15, 15}]], {t,0, 2 Pi}]
mathematica 能像Matlab 或者C 语言那样写实现一定功能的子函数吗...答:Select[Range[2, 100], isPrime1]Select[Range[2, 100], isPrime2]Clear["`*"];isPrime = Compile[{{n, _Integer}},Catch[Do[If[n~Mod~i == 0, Throw@0], {i, 2, n^.5}]; 1],RuntimeAttributes -> {Listable}];isPrime@Range[2, 10^5] // Tr // AbsoluteTiming Range[...