matlab傳染病模型doc(編輯修改稿)
2024-08-11 11:37 本頁(yè)面
【文章內(nèi)容簡(jiǎn)介】 )%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%step2:求解并作圖clcclearlambda=。sigma=2。[t,i1]=ode45(@crb,[0,1000],[],lambda,sigma)。[t,i2]=ode45(@crb,[0,1000],[],lambda,sigma)。plot(t,i1,t,i2,t,1/2)legend(39。\sigma139。)當(dāng)sigma=1時(shí)Step1:先定義函數(shù)function di=crb(t,i,lambda,sigma)di=lambda*i*(i(11/sigma))%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%step2:求解并作圖clcclearlambda=。sigma=1[t,i1]=ode45(@crb,[0,1000],[],lamb
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