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harsucprace

新虫 (小有名气)

[求助] 【求助】matlab解非线性方程——PN结电流问题

老师布置的作业,是用数学方法解决物理问题的,用的是matlab。这道题主要是牛顿法,由于本人初学,实在是绞尽脑汁,压力山大,希望各位大神指点迷津,谢谢
【求助】matlab解非线性方程——PN结电流问题
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【求助】matlab解非线性方程——PN结电流问题-1
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【求助】matlab解非线性方程——PN结电流问题-2
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【求助】matlab解非线性方程——PN结电流问题-3
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harsucprace

新虫 (小有名气)

%f=I0-(1e-11)*(exp((V-I0*10)/0.026)-1)
%df=1+(1e-10)/0.026*exp((V-I0*10)/0.026)
function mmm
I0=0
e=0.001
for V=0:0.001:0.002
%V=0.01
I1=I0-(1e-11*(exp((V-I0*10)/0.026-1)))/(1+(1e-10)/0.026*exp((V-I0*10)/0.026))
while abs((I0-I1)/I1)>e
   I0=I1
   I1=I0-(1e-11*(exp((V-I0*10)/0.026-1)))/(1+(1e-10)/0.026*exp((V-I0*10)/0.026))
end
end
2楼2013-09-26 19:58:13
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harsucprace

新虫 (小有名气)

引用回帖:
2楼: Originally posted by harsucprace at 2013-09-26 19:58:13
%f=I0-(1e-11)*(exp((V-I0*10)/0.026)-1)
%df=1+(1e-10)/0.026*exp((V-I0*10)/0.026)
function mmm
I0=0
e=0.001
for V=0:0.001:0.002
%V=0.01
I1=I0-(1e-11*(exp((V-I0*10)/0.026-1)))/(1+(1e-10)/0.026*ex ...

自己写的,不完整
3楼2013-09-26 19:58:32
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