level 1
伊人_小海
楼主
如何在等高线图上标识出某点的坐标？例如在图中标出点（0.78, 1.08, 418）。
Freq = 15*10^9
ZS = 12.88 - 45.12 I (*串联形式*)
YS = 1/ZS
QS = Abs[Im[ZS]/Re[ZS]]
QL
k
a = 1/k^2 - 1
Z = 0.5*((2 a + 1) QS + QL - Sqrt[
QL*QS*(2 + 4 a) + (QL^2 + QS^2) - 4 a (1 + a)])/((1 + QS^2) (1 + a))
LP = ((1/Re[YS])*Z)/(2 Pi*Freq*(1 - k^2))
ContourPlot[LP*10^12, {k, 0.1, 0.9}, {QL, 1, 2},
ColorFunction -> "Rainbow", AxesLabel -> {"k", "QL", "Lp(pH)"},
ContourLabels -> True, Contours -> 5]
2019年04月17日 11点04分
1
Freq = 15*10^9
ZS = 12.88 - 45.12 I (*串联形式*)
YS = 1/ZS
QS = Abs[Im[ZS]/Re[ZS]]
QL
k
a = 1/k^2 - 1
Z = 0.5*((2 a + 1) QS + QL - Sqrt[
QL*QS*(2 + 4 a) + (QL^2 + QS^2) - 4 a (1 + a)])/((1 + QS^2) (1 + a))
LP = ((1/Re[YS])*Z)/(2 Pi*Freq*(1 - k^2))
ContourPlot[LP*10^12, {k, 0.1, 0.9}, {QL, 1, 2},
ColorFunction -> "Rainbow", AxesLabel -> {"k", "QL", "Lp(pH)"},
ContourLabels -> True, Contours -> 5]
