熟悉mathematica的人能告诉我为什么我的绘图不会生成吗?
plot1 = ContourPlot3D[{x^2 + (y + 0.25)^2 + (z - 0.45)^2 = 0.25,
x^2 + y^2 + (z + 0.5)^2 = 0.25,
x^2 + (y + 0.5)^2 + (z - 1.4)^2 = 0.25,
x^2 + (y + 0.25)^2 + (z - 2.35)^2 = 0.25,
x^2 + y^2 + (z - 3.3)^2 = 0.25,
x^2 + (y + 0.25)^2 + (z - 4.25)^2 = 0.25,
x^2 + (y + 0.5)^2 + (z - 5.2)^2 = 0.25,
x^2 + (y + 0.25)^2 + (z - 6.15)^2 = 0.25,
x^2 + y^2 + (z - 7.1)^2 = 0.25}, {x, -3, 3}, {y, -3, 3}, {z, -3, 3}]
plot2 = ContourPlot3D[{x^2 + (y - 0.5)^2 + (z - 0.25)^2 = 0.25,
x^2 + (y - 0.75)^2 + (z - 1.15)^2 = 0.25,
x^2 + (y - 1)^2 + (z - 2.05)^2 = 0.25,
x^2 + (y - 1.25)^2 + (z - 2.95)^2 = 0.25,
x^2 + (y - 1.5)^2 + (z - 3.85)^2 = 0.25,
x^2 + (y - 1.75)^2 + (z - 4.75)^2 = 0.25}, {x, -3, 3}, {y, -3,
3}, {z, -3, 3}]
plot3 = ContourPlot3D[{x^2 + (y + 0.5)^2 + z^2 = 0.25,
x^2 + (y + 1)^2 + (z - 0.75)^2 = 0.25,
x^2 + (y + 1.5)^2 + (z - 1.5)^2 = 0.25,
x^2 + (y + 2)^2 + (z - 2.25)^2 = 0.25}, {x, -3, 3}, {y, -3,
3}, {z, -3, 3}]
对于每个图,此错误出现三次:
Set::write: Tag Plus in 7.56014\[VeryThinSpace]+8.99743\[VeryThinSpace]+11.8995
is Protected. >>
Set::write: Tag Plus in 6.24786\[VeryThinSpace]+8.99743\[VeryThinSpace]+8.99743
is Protected. >>
Set::write: Tag Plus in 6.24786\[VeryThinSpace]+8.99743\[VeryThinSpace]+19.3562
is Protected. >>
General::stop: Further output of Set::write will be suppressed during this calculation. >>