。。。。是不是mathematica的版本太低？

zhb

% b4 n  M; k2 nContourPlot3D[(x^2 + (9 y^2)/4 + z^2 - 1)^3 - x^2 z^3 - (9 y^2 z^3)/
- V2 ?* I- ]- L+ ^5 R7 @   80 == 0, {x, -1.5, 1.5}, {y, -1.5, 1.5}, {z, -1.5, 1.5},
9 ^  g! x1 O% uPlotPoints -> 30, Axes -> False, Lighting -> False, 9 L9 O' I3 z- K
3 V+ T1 N% N; s; h, k0 Y/ xContourStyle -> {RGBColor[1, 0.0, 0.0]}]
! ^6 u7 R1 \4 o, q" S* s' X4 ]' S

/ C+ E4 U& \8 V画不出。。。。我的是mathematica5.0