TA的每日心情 | 衰 2019-11-19 15:32 |
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签到天数: 1 天 [LV.1]初来乍到
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nitao=2.175;
# v$ t& G B, l6 _& `. @. |nitae=2.18;
% O- @2 k: J- a' _0 N( @3 a( dderta33=30.3;0 s! w- P0 u+ D. _6 Z7 c
derta13=5.7;( t. S* d( B) {1 K
L=0.1;%m# }0 V3 G- S4 i# R
lamda0=0.633*10^(-6);%m+ _$ b/ L; K9 Y! t* i6 w8 I: o
Vm=100;%v
% n3 V: w' u5 U9 o, Me=43;
4 }" x8 l0 ]- j( P1 {' UA=10^(-3);%m^2! M F# V, O r, W4 a
dertaf=10^7;%Hz
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syms Ez;$ a0 m j1 A! @ i5 x; f2 N
E=solve(2*pi*L/lamda0*((nitao-nitae)+Ez*(nitae^3*derta33-nitao^3*derta13)/2)==pi,Ez);
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sprintf('半波电场强度:%e','E')0 S- a1 s, j% X' u( @0 W' c8 }, ^
: e- Z4 |2 H& r/ xVpi=E*L;
. e+ y. g1 u$ B# F: ]dertaph=Vm*pi/Vpi;
# Z" F- q2 E3 ^& k- g; Q Mdertaph- D0 T4 s- V7 I' y: D$ \; }4 k3 u" F
sprintf('相位延迟:%e','dertaph')
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P=e*A*Vpi^2*dertaph^2*dertaf/(pi*L);
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sprintf('驱动功率%e','P')( f. R8 C1 x# r( Q
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结果:
0 K* W4 X4 ^; z' ~E =
4 F4 ?5 i( s' a3 Z6 b1 q. e+ H7 U" y(9444732965739290427392*pi)/1196549586897533007794808436155 + 11258999068427/287405211048345088
1 E4 Q5 B2 A4 }; S* _$ h/ i' sans = T. b2 b& f# B. q
半波电场强度:6.900000e+015 c- f7 e4 T& c' d* r
dertaph =
; F! Q9 a* W1 k, j: ](100*pi)/((4722366482869645213696*pi)/5982747934487665038974042180775 + 11258999068427/2874052110483450880)$ k, \0 \8 s* R0 H ]
ans =
. M& t5 u z4 M/ F2 F; r相位延迟:1.000000e+02相位延迟:1.010000e+02相位延迟:1.140000e+02相位延迟:1.160000e+02相位延迟:9.700000e+01相位延迟:1.120000e+02相位延迟:1.040000e+02: k1 O' h& w+ G7 Q4 }8 P( ]' T0 ?
P =
' W$ \, D- i6 @7 E6 q- q43000000000*pi' C+ ~9 H( w( w% t
ans =
# \/ c$ l2 B" I# F% q6 h( H4 O驱动功率8.000000e+01
8 K# E4 S- d* z2 s- x# d7 \为什么变量值和sprintf的值不一样?% z+ g2 W% M8 w* m( g3 @
为什么相位延迟有这么多个?+ o: i" H9 S+ Y/ Q) x
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