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求fh3函数在[0.001 0.01]和[0.003 0.1]之间的最小值,估计在1至5之间。 ' c) r/ n0 `7 e% O. ]
function f=fh3(n)
5 Z5 O- N) z3 H( c0 Z' Og2=2^0.5-1;2 S4 I2 S2 ?' u3 J
mu0=4*pi*10^(-7);
9 V2 w; s) b2 ggaf=7.8*10^3;" Y. U8 @' l4 g7 `% O* Y2 [
gacu=8.9*10^3;
; g0 Q N' A9 Q: v9 K5 K" M# a2 n: h7 Qgat=4.5*10^3;; M p$ `; N) g4 s
gaa=2.7*10^3;/ f3 V1 |! j, G+ L m) ]
p=2.7*10^4;, Z/ g. u9 G9 h- _; b7 \7 J G
q=3*10^(-5);
) \1 D: s: o# t/ p) N$ @rou=0.7;
. b4 ~6 _4 _9 f: W8 c9 Q, ikb=0.9;: F6 D6 b8 D" f0 O3 a! q4 O
%j0=8*10^6;
, \9 k- K- v$ i+ N7 Y) _" Tj0=2*10^6;- s# B4 |& ~6 f
kd=3;
1 H9 A8 r2 q$ y# \bm=2;! _8 A+ f6 { h: h; v
ht=2*10^(-3);) w& d I, j9 O4 I9 {3 m8 z, g
mu1=10^8/1.75;
& \: E6 T, P; s; |% Okt1=2*pi*gat*ht;) H. S7 O7 l0 C0 ?' `* Y) b" U$ y6 Q
kt2=2*pi*gaa*ht;4 l1 ^+ `) B7 X) c! Z
kr=1.02;9 E/ R+ v6 G! M" J' k% G& D
ku=(mu0/2/bm)^0.5;: b2 q* g v$ [' @$ L( @
kx=mu0^0.5*kb*kd^2*j0;
1 H' ?/ `4 k9 B5 D7 g* G# o4 W# {kp=(2*q/pi/p)^0.5;
3 E0 |* d2 F9 r7 ?8 `kg=mu0^0.5*kb*kd*j0*g2;: k6 B) W. x. W4 m* x7 E
rx=ku*kx-kp*kg;
' z" y& D/ x- d7 a$ [. c5 I5 Xra=ku*kg;0 ]& l; q$ Y& B' D9 ^6 X8 O" c, E
rc=kp*kx;
0 l; X- h7 V0 p$ g1 i! d) U6 _kj=mu0*kb*kd*j0;, s1 A) g' O# E/ G! `6 q8 M
kj=kj/kx;* R& i' G8 P; r
h0=3*ht;
) ^" B2 e5 @! w3 w4 C0 ?h1=2*(1+1/rou)*q/pi;
' d: G$ w( j% A2 }6 Sh2=2*(kd-1);
2 F; G% g# {7 g* ~ S/ z/ R% ah3=1/bm*(mu0*p*q/(2*pi))^0.5;4 }, g7 Z7 u6 o3 Q
h4=1/kj*(mu0*p*q/(2*pi))^0.5;- K \: ]8 N( i) l2 z
hg=2*pi*kr*ht;
0 @$ z: Y. N: v9 K9 ^w1=gaf/bm*(pi*p*q*mu0/2)^0.5;
- A7 s; B3 t" r! P& T9 R$ a1 qw1p=8*g2*kd*w1;" I W1 ?) V2 d& V
w2=2*kd^2*gaf*(2*pi*mu0*p*q)^0.5/kj;' ?/ l, _$ z4 ]# D
w3p=2*g2*gacu/kj*(2*pi*p*q*mu0)^0.5;+ e" H* N5 r* M' P* y
w3pp=hg*h3;
% R, g" T' I7 x& gw3=w3p+w3pp;
1 S! X1 t1 I6 I0 t# M) R7 H. B4 }w4=2*kd*gacu/kj*(2*pi*p*q*mu0);4 t8 u0 \0 |. R! l9 K! F+ l
w5=5*pi*ht*gat;
; o. w( C( M3 ?1 s0 x1 X0 Uw6=hg*h0*gat;. |$ `; z# Q" H" o/ ^
w7=hg*h1*gat;
- H: B1 p. E& F' t& ww8=hg*h0*gat;
- g, W: ` h% O* @w9=hg*h4*gat;
- r/ y8 V1 l: h3 \& h9 {0 ~1 p% sf=w1p*r*x^0.5+w2*x^1.5/(g2*r-kd*x)+w3*r*x^(-0.5)+w4*x^0.5+w5*r^2+w6*r+w7/r+w8*r*x+w9*r*x^(-0.5)/(g2*r-kd*x);5 W+ p0 k( G# O2 H4 J! _1 ?
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